diff --git a/interface/src/Application.cpp b/interface/src/Application.cpp
index 88b92e1d45..b770e3ae7d 100644
--- a/interface/src/Application.cpp
+++ b/interface/src/Application.cpp
@@ -1944,6 +1944,7 @@ void Application::initMenu() {
     (_fullScreenMode = optionsMenu->addAction("Fullscreen", this, SLOT(setFullscreen(bool)), Qt::Key_F))->setCheckable(true);
     optionsMenu->addAction("Webcam", &_webcam, SLOT(setEnabled(bool)))->setCheckable(true);
     optionsMenu->addAction("Toggle Skeleton Tracking", &_webcam, SLOT(setSkeletonTrackingOn(bool)))->setCheckable(true);
+    (_wantCollisionsOn = optionsMenu->addAction("Turn collisions On", this, SLOT(toggleWantCollisionsOn())))->setCheckable(true);
     optionsMenu->addAction("Cycle Webcam Send Mode", _webcam.getGrabber(), SLOT(cycleVideoSendMode()));
     optionsMenu->addAction("Go Home", this, SLOT(goHome()), Qt::CTRL | Qt::Key_G);
     
@@ -2137,6 +2138,10 @@ void Application::toggleMixedSong() {
     }
 }
 
+void Application::toggleWantCollisionsOn() {
+    _myAvatar.setWantCollisionsOn(_wantCollisionsOn->isChecked());
+}
+
 void Application::resetSongMixMenuItem() {
     if (_audio.getSongFileBytes() == 0) {
         _rawAudioMicrophoneMix->setText("Mix RAW Song");
@@ -2287,6 +2292,56 @@ void Application::renderLookatIndicator(glm::vec3 pointOfInterest, Camera& which
     renderCircle(haloOrigin, INDICATOR_RADIUS, IDENTITY_UP, NUM_SEGMENTS);
 }
 
+void Application::renderFollowIndicator() {
+    NodeList* nodeList = NodeList::getInstance();
+
+    glLineWidth(5);
+    glBegin(GL_LINES);
+    for (NodeList::iterator node = nodeList->begin(); node != nodeList->end(); ++node) {
+        if (node->getLinkedData() != NULL && node->getType() == NODE_TYPE_AGENT) {
+            Avatar* avatar = (Avatar *) node->getLinkedData();
+            Avatar* leader = NULL;
+
+            if (avatar->getLeaderID() != UNKNOWN_NODE_ID) {
+                if (avatar->getLeaderID() == NodeList::getInstance()->getOwnerID()) {
+                    leader = &_myAvatar;
+                } else {
+                    for (NodeList::iterator it = nodeList->begin(); it != nodeList->end(); ++it) {
+                        if(it->getNodeID() == avatar->getLeaderID()
+                                && it->getType() == NODE_TYPE_AGENT) {
+                            leader = (Avatar*) it->getLinkedData();
+                        }
+                    }
+                }
+
+                if (leader != NULL) {
+                    glColor3f(1.f, 0.f, 0.f);
+                    glVertex3f(avatar->getPosition().x,
+                               avatar->getPosition().y,
+                               avatar->getPosition().z);
+                    glColor3f(0.f, 1.f, 0.f);
+                    glVertex3f(leader->getPosition().x,
+                               leader->getPosition().y,
+                               leader->getPosition().z);
+                }
+            }
+        }
+    }
+
+    if (_myAvatar.getLeadingAvatar() != NULL) {
+        glColor3f(1.f, 0.f, 0.f);
+        glVertex3f(_myAvatar.getPosition().x,
+                   _myAvatar.getPosition().y,
+                   _myAvatar.getPosition().z);
+        glColor3f(0.f, 1.f, 0.f);
+        glVertex3f(_myAvatar.getLeadingAvatar()->getPosition().x,
+                   _myAvatar.getLeadingAvatar()->getPosition().y,
+                   _myAvatar.getLeadingAvatar()->getPosition().z);
+    }
+
+    glEnd();
+}
+
 void Application::update(float deltaTime) {
 
     //  Use Transmitter Hand to move hand if connected, else use mouse
@@ -3054,6 +3109,8 @@ void Application::displaySide(Camera& whichCamera) {
     
     // brad's frustum for debugging
     if (_frustumOn->isChecked()) renderViewFrustum(_viewFrustum);
+
+    renderFollowIndicator();
 }
 
 void Application::displayOverlay() {
diff --git a/interface/src/Application.h b/interface/src/Application.h
index dfb38d5dd5..0e789c4041 100644
--- a/interface/src/Application.h
+++ b/interface/src/Application.h
@@ -179,6 +179,7 @@ private slots:
     void setListenModePoint();
     void setListenModeSingleSource();
     void toggleMixedSong();
+    void toggleWantCollisionsOn();
 
 
     void renderCoverageMap();
@@ -216,6 +217,7 @@ private:
     bool isLookingAtMyAvatar(Avatar* avatar);
                                 
     void renderLookatIndicator(glm::vec3 pointOfInterest, Camera& whichCamera);
+    void renderFollowIndicator();
     void updateAvatar(float deltaTime);
     void loadViewFrustum(Camera& camera, ViewFrustum& viewFrustum);
     
@@ -294,6 +296,7 @@ private:
     QAction* _rawAudioMicrophoneMix; // Mixing of a RAW audio file with microphone stream for rave gloves
     QAction* _noise;
     QAction* _occlusionCulling;
+    QAction* _wantCollisionsOn;
 
     QAction* _renderCoverageMapV2;
     QAction* _renderCoverageMap;
diff --git a/interface/src/avatar/Avatar.cpp b/interface/src/avatar/Avatar.cpp
index b67a32887c..efd8c714ab 100755
--- a/interface/src/avatar/Avatar.cpp
+++ b/interface/src/avatar/Avatar.cpp
@@ -497,10 +497,13 @@ void Avatar::follow(Avatar* leadingAvatar) {
 
     _leadingAvatar = leadingAvatar;
     if (_leadingAvatar != NULL) {
+        _leaderID = leadingAvatar->getOwningNode()->getNodeID();
         _stringLength = glm::length(_position - _leadingAvatar->getPosition()) / _scale;
         if (_stringLength > MAX_STRING_LENGTH) {
             _stringLength = MAX_STRING_LENGTH;
         }
+    } else {
+        _leaderID = UNKNOWN_NODE_ID;
     }
 }
 
@@ -627,9 +630,12 @@ void Avatar::simulate(float deltaTime, Transmitter* transmitter, float gyroCamer
                 _velocity += _scale * _gravity * (GRAVITY_EARTH * deltaTime);
             }
         }
-        updateCollisionWithEnvironment(deltaTime);
-        updateCollisionWithVoxels(deltaTime);
-        updateAvatarCollisions(deltaTime);
+
+        if (_isCollisionsOn) {
+            updateCollisionWithEnvironment(deltaTime);
+            updateCollisionWithVoxels(deltaTime);
+            updateAvatarCollisions(deltaTime);
+        }
     }
     
     // update body balls
@@ -637,7 +643,7 @@ void Avatar::simulate(float deltaTime, Transmitter* transmitter, float gyroCamer
     
 
     // test for avatar collision response with the big sphere
-    if (usingBigSphereCollisionTest) {
+    if (usingBigSphereCollisionTest && _isCollisionsOn) {
         updateCollisionWithSphere(_TEST_bigSpherePosition, _TEST_bigSphereRadius, deltaTime);
     }
     
diff --git a/interface/src/avatar/Avatar.h b/interface/src/avatar/Avatar.h
index fc475a5bd2..9b1029ce18 100755
--- a/interface/src/avatar/Avatar.h
+++ b/interface/src/avatar/Avatar.h
@@ -27,7 +27,7 @@
 #include "world.h"
 
 
-static const float MAX_SCALE           = 5.f;
+static const float MAX_SCALE           = 10.f;
 static const float MIN_SCALE           = .5f;
 static const float SCALING_RATIO       = .05f;
 static const float SMOOTHING_RATIO     = .05f; // 0 < ratio < 1
@@ -140,6 +140,7 @@ public:
     void setMouseRay               (const glm::vec3 &origin, const glm::vec3 &direction);
     void setOrientation            (const glm::quat& orientation);
     void setNewScale               (const float scale);
+    void setWantCollisionsOn       (bool wantCollisionsOn            ) { _isCollisionsOn = wantCollisionsOn; }
 
     //getters
     bool             isInitialized             ()                const { return _initialized;}
@@ -261,6 +262,7 @@ private:
     glm::vec3   _lastCollisionPosition;
     bool        _speedBrakes;
     bool        _isThrustOn;
+    bool        _isCollisionsOn;
 
     Avatar*     _leadingAvatar;
     float       _stringLength;
diff --git a/interface/src/avatar/Hand.cpp b/interface/src/avatar/Hand.cpp
index 4043f1e42f..43b7bfc2e3 100755
--- a/interface/src/avatar/Hand.cpp
+++ b/interface/src/avatar/Hand.cpp
@@ -54,8 +54,8 @@ void Hand::reset() {
 void Hand::simulate(float deltaTime, bool isMine) {
 
     if (_isRaveGloveActive) {
-        if (_raveGloveEffectsModeChanged) {
-            setRaveGloveMode(_raveGloveEffectsMode); 
+        if (_raveGloveEffectsModeChanged && _raveGloveInitialized) {
+            activateNewRaveGloveMode();
             _raveGloveEffectsModeChanged = false;
         }
         
@@ -352,6 +352,7 @@ void Hand::updateRaveGloveParticles(float deltaTime) {
         }
                                                     
         setRaveGloveMode(RAVE_GLOVE_EFFECTS_MODE_FIRE);
+        activateNewRaveGloveMode();
         _raveGloveParticleSystem.setUpDirection(glm::vec3(0.0f, 1.0f, 0.0f));
         _raveGloveInitialized = true;         
     } else {        
@@ -359,11 +360,14 @@ void Hand::updateRaveGloveParticles(float deltaTime) {
     }
 }
 
+// The rave glove mode has changed, so activate the effects.
+void Hand::activateNewRaveGloveMode() {
 
-void Hand::setRaveGloveMode(int mode) {
-
-    _raveGloveMode = mode;
-
+    if (!_raveGloveInitialized) {
+        return;
+    }
+    
+    int mode = _raveGloveEffectsMode;
     _raveGloveParticleSystem.killAllParticles();
 
     for ( int f = 0; f< NUM_FINGERS; f ++ ) {
diff --git a/interface/src/avatar/Hand.h b/interface/src/avatar/Hand.h
index 6df97ea106..d2a36b97b1 100755
--- a/interface/src/avatar/Hand.h
+++ b/interface/src/avatar/Hand.h
@@ -60,8 +60,6 @@ private:
     float          _raveGloveClock;
     bool           _raveGloveInitialized;
     int            _raveGloveEmitter[NUM_FINGERS];
-    int            _raveGloveEffectsMode;
-    bool           _raveGloveEffectsModeChanged;
 
     Avatar*        _owningAvatar;
     float          _renderAlpha;
@@ -74,7 +72,7 @@ private:
     void setLeapHands(const std::vector<glm::vec3>& handPositions,
                       const std::vector<glm::vec3>& handNormals);
 
-    virtual void setRaveGloveMode(int mode);
+    void activateNewRaveGloveMode();
 
     void renderRaveGloveStage();
     void renderLeapHandSpheres();
diff --git a/interface/src/avatar/Head.cpp b/interface/src/avatar/Head.cpp
index 08d9856634..8f1d511b02 100644
--- a/interface/src/avatar/Head.cpp
+++ b/interface/src/avatar/Head.cpp
@@ -338,7 +338,7 @@ void Head::setScale (float scale) {
 }
 
 void Head::createMohawk() {
-    uint16_t nodeId = 0;
+    uint16_t nodeId = UNKNOWN_NODE_ID;
     if (_owningAvatar->getOwningNode()) {
         nodeId = _owningAvatar->getOwningNode()->getNodeID();
     } else {
diff --git a/libraries/avatars/src/AvatarData.cpp b/libraries/avatars/src/AvatarData.cpp
index 1dd6a0787b..6d5d0a6528 100644
--- a/libraries/avatars/src/AvatarData.cpp
+++ b/libraries/avatars/src/AvatarData.cpp
@@ -41,7 +41,8 @@ AvatarData::AvatarData(Node* owningNode) :
     _wantLowResMoving(false),
     _wantOcclusionCulling(true),
     _headData(NULL),
-    _handData(NULL)
+    _handData(NULL),
+    _leaderID(UNKNOWN_NODE_ID)
 {
     
 }
@@ -91,8 +92,14 @@ int AvatarData::getBroadcastData(unsigned char* destinationBuffer) {
     destinationBuffer += packFloatAngleToTwoByte(destinationBuffer, _bodyYaw);
     destinationBuffer += packFloatAngleToTwoByte(destinationBuffer, _bodyPitch);
     destinationBuffer += packFloatAngleToTwoByte(destinationBuffer, _bodyRoll);
+
+    // Body scale
     destinationBuffer += packFloatRatioToTwoByte(destinationBuffer, _newScale);
     
+    // Follow mode info
+    memcpy(destinationBuffer, &_leaderID, sizeof(uint16_t));
+    destinationBuffer += sizeof(uint16_t);
+
     // Head rotation (NOTE: This needs to become a quaternion to save two bytes)
     destinationBuffer += packFloatAngleToTwoByte(destinationBuffer, _headData->_yaw);
     destinationBuffer += packFloatAngleToTwoByte(destinationBuffer, _headData->_pitch);
@@ -188,8 +195,14 @@ int AvatarData::parseData(unsigned char* sourceBuffer, int numBytes) {
     sourceBuffer += unpackFloatAngleFromTwoByte((uint16_t*) sourceBuffer, &_bodyYaw);
     sourceBuffer += unpackFloatAngleFromTwoByte((uint16_t*) sourceBuffer, &_bodyPitch);
     sourceBuffer += unpackFloatAngleFromTwoByte((uint16_t*) sourceBuffer, &_bodyRoll);
+
+    // Body scale
     sourceBuffer += unpackFloatRatioFromTwoByte(            sourceBuffer,  _newScale);
 
+    // Follow mode info
+    memcpy(&_leaderID, sourceBuffer, sizeof(uint16_t));
+    sourceBuffer += sizeof(uint16_t);
+
     // Head rotation (NOTE: This needs to become a quaternion to save two bytes)
     float headYaw, headPitch, headRoll;
     sourceBuffer += unpackFloatAngleFromTwoByte((uint16_t*) sourceBuffer, &headYaw);
diff --git a/libraries/avatars/src/AvatarData.h b/libraries/avatars/src/AvatarData.h
index a9e14caaa6..bdcf74904e 100755
--- a/libraries/avatars/src/AvatarData.h
+++ b/libraries/avatars/src/AvatarData.h
@@ -92,10 +92,11 @@ public:
     const std::string& chatMessage () const { return _chatMessage; }
 
     // related to Voxel Sending strategies
-    bool getWantColor() const            { return _wantColor; }
-    bool getWantDelta() const            { return _wantDelta; }
-    bool getWantLowResMoving() const     { return _wantLowResMoving; }
+    bool getWantColor()            const { return _wantColor; }
+    bool getWantDelta()            const { return _wantDelta; }
+    bool getWantLowResMoving()     const { return _wantLowResMoving; }
     bool getWantOcclusionCulling() const { return _wantOcclusionCulling; }
+    uint16_t getLeaderID()         const { return _leaderID; }
 
     void setWantColor(bool wantColor)                       { _wantColor = wantColor; }
     void setWantDelta(bool wantDelta)                       { _wantDelta = wantDelta; }
@@ -118,8 +119,13 @@ protected:
     float _bodyYaw;
     float _bodyPitch;
     float _bodyRoll;
+
+    // Body scale
     float _newScale;
 
+    // Following mode infos
+    uint16_t _leaderID;
+
     //  Hand state (are we grabbing something or not)
     char _handState;
     
diff --git a/libraries/avatars/src/HandData.cpp b/libraries/avatars/src/HandData.cpp
index 644a0764b7..2f6e8aa560 100644
--- a/libraries/avatars/src/HandData.cpp
+++ b/libraries/avatars/src/HandData.cpp
@@ -20,7 +20,8 @@ HandData::HandData(AvatarData* owningAvatar) :
     _baseOrientation(0.0f, 0.0f, 0.0f, 1.0f),
     _owningAvatarData(owningAvatar),
     _isRaveGloveActive(false),
-    _raveGloveMode(RAVE_GLOVE_EFFECTS_MODE_THROBBING_COLOR)
+    _raveGloveEffectsMode(RAVE_GLOVE_EFFECTS_MODE_THROBBING_COLOR),
+    _raveGloveEffectsModeChanged(false)
 {
     // Start with two palms
     addNewPalm();
@@ -160,8 +161,9 @@ int HandData::decodeRemoteData(unsigned char* sourceBuffer) {
     }
     
     setRaveGloveActive((gloveFlags & GLOVE_FLAG_RAVE) != 0);
-// This is disabled for crash tracing.
-//    setRaveGloveMode(effectsMode);
+    if (numHands > 0) {
+        setRaveGloveMode(effectsMode);
+    }
     
     // One byte for error checking safety.
     unsigned char requiredLength = (unsigned char)(sourceBuffer - startPosition);
@@ -171,6 +173,13 @@ int HandData::decodeRemoteData(unsigned char* sourceBuffer) {
     return sourceBuffer - startPosition;
 }
 
+void HandData::setRaveGloveMode(int effectsMode) {
+    if (effectsMode != _raveGloveEffectsMode) {
+        _raveGloveEffectsModeChanged = true;
+    }
+    _raveGloveEffectsMode = effectsMode;
+}
+
 void HandData::setFingerTrailLength(unsigned int length) {
     for (size_t i = 0; i < getNumPalms(); ++i) {
         PalmData& palm = getPalms()[i];
diff --git a/libraries/avatars/src/HandData.h b/libraries/avatars/src/HandData.h
index fd820bccc0..c871c568bb 100755
--- a/libraries/avatars/src/HandData.h
+++ b/libraries/avatars/src/HandData.h
@@ -70,9 +70,9 @@ public:
     int decodeRemoteData(unsigned char* sourceBuffer);
 
     void setRaveGloveActive(bool active)          { _isRaveGloveActive = active; }
-    virtual void setRaveGloveMode(int effectsMode)        { _raveGloveMode = effectsMode; }
+    void setRaveGloveMode(int effectsMode);
     bool isRaveGloveActive() const                { return _isRaveGloveActive; }
-    int  getRaveGloveMode()                       { return _raveGloveMode; }
+    int  getRaveGloveMode()                       { return _raveGloveEffectsMode; }
 
     friend class AvatarData;
 protected:
@@ -81,7 +81,8 @@ protected:
     AvatarData* _owningAvatarData;
     std::vector<PalmData>  _palms;
     bool                   _isRaveGloveActive;
-    int                    _raveGloveMode;
+    int                    _raveGloveEffectsMode;
+    bool                   _raveGloveEffectsModeChanged;
 private:
     // privatize copy ctor and assignment operator so copies of this object cannot be made
     HandData(const HandData&);
diff --git a/libraries/shared/src/NodeList.h b/libraries/shared/src/NodeList.h
index 260fddf96f..566cd8ba40 100644
--- a/libraries/shared/src/NodeList.h
+++ b/libraries/shared/src/NodeList.h
@@ -66,7 +66,7 @@ public:
     void setDomainIPToLocalhost();
         
     uint16_t getLastNodeID() const { return _lastNodeID; }
-    void increaseNodeID() { ++_lastNodeID; }
+    void increaseNodeID() { (++_lastNodeID == UNKNOWN_NODE_ID) ? ++_lastNodeID : _lastNodeID; }
     
     uint16_t getOwnerID() const { return _ownerID; }
     void setOwnerID(uint16_t ownerID) { _ownerID = ownerID; }
diff --git a/libraries/shared/src/PacketHeaders.cpp b/libraries/shared/src/PacketHeaders.cpp
index 99c887614c..d435e1bd1b 100644
--- a/libraries/shared/src/PacketHeaders.cpp
+++ b/libraries/shared/src/PacketHeaders.cpp
@@ -20,7 +20,7 @@ PACKET_VERSION versionForPacketType(PACKET_TYPE type) {
             return 1;
 
         case PACKET_TYPE_HEAD_DATA:
-            return 3;
+            return 4;
         
         case PACKET_TYPE_AVATAR_FACE_VIDEO:
             return 1;