diff --git a/Projects/Android/jni/src/Lambda1VR/VrInput.h b/Projects/Android/jni/src/Lambda1VR/VrInput.h
index 21125c5..f10446b 100644
--- a/Projects/Android/jni/src/Lambda1VR/VrInput.h
+++ b/Projects/Android/jni/src/Lambda1VR/VrInput.h
@@ -52,6 +52,8 @@ void HandleInput_OneController( ovrInputStateTrackedRemote *pDominantTrackedRemo
 bool stabiliseScope;
 void updateScopeAngles(float forwardYaw);
 
+bool isBackpack(ovrTracking* pTracking);
+
 char * g_pszBackpackWeapon;
 
 #endif //VRINPUT_H
diff --git a/Projects/Android/jni/src/Lambda1VR/VrInputAlt.c b/Projects/Android/jni/src/Lambda1VR/VrInputAlt.c
index c3d904e..977e394 100644
--- a/Projects/Android/jni/src/Lambda1VR/VrInputAlt.c
+++ b/Projects/Android/jni/src/Lambda1VR/VrInputAlt.c
@@ -47,7 +47,7 @@ void HandleInput_Alt( ovrInputStateTrackedRemote *pDominantTrackedRemoteNew, ovr
     static bool selectingWeapon = false;
 
 	static bool canUseQuickSave = false;
-	if (pOffTracking->Status & (VRAPI_TRACKING_STATUS_POSITION_TRACKED | VRAPI_TRACKING_STATUS_POSITION_VALID)) {
+	if (!isBackpack(pOffTracking)) {
 		canUseQuickSave = false;
 	}
 	else if (!canUseQuickSave) {
@@ -212,7 +212,7 @@ void HandleInput_Alt( ovrInputStateTrackedRemote *pDominantTrackedRemoteNew, ovr
 				finishReloadNextFrame = false;
 			}
 
-			if (pDominantTracking->Status & (VRAPI_TRACKING_STATUS_POSITION_TRACKED | VRAPI_TRACKING_STATUS_POSITION_VALID)) {
+			if (!isBackpack(pDominantTracking)) {
 				canUseBackpack = false;
 			}
 			else if (!canUseBackpack && grabMeleeWeapon == 0) {
@@ -232,7 +232,7 @@ void HandleInput_Alt( ovrInputStateTrackedRemote *pDominantTrackedRemoteNew, ovr
 
 				if (grabMeleeWeapon == 0)
 				{
-					if (pDominantTracking->Status & (VRAPI_TRACKING_STATUS_POSITION_TRACKED | VRAPI_TRACKING_STATUS_POSITION_VALID)) {
+					if (!isBackpack(pDominantTracking)) {
 
 						if (dominantGripPushed) {
 							dominantGripPushTime = GetTimeInMilliSeconds();
diff --git a/Projects/Android/jni/src/Lambda1VR/VrInputAlt2.c b/Projects/Android/jni/src/Lambda1VR/VrInputAlt2.c
index f42f1a1..75d495c 100644
--- a/Projects/Android/jni/src/Lambda1VR/VrInputAlt2.c
+++ b/Projects/Android/jni/src/Lambda1VR/VrInputAlt2.c
@@ -46,7 +46,7 @@ void HandleInput_Alt2( ovrInputStateTrackedRemote *pDominantTrackedRemoteNew, ov
 	static float dominantGripPushTime = 0.0f;
 
 	static bool canUseQuickSave = false;
-	if (pOffTracking->Status & (VRAPI_TRACKING_STATUS_POSITION_TRACKED | VRAPI_TRACKING_STATUS_POSITION_VALID)) {
+	if (!isBackpack(pOffTracking)) {
 		canUseQuickSave = false;
 	}
 	else if (!canUseQuickSave) {
@@ -223,7 +223,7 @@ void HandleInput_Alt2( ovrInputStateTrackedRemote *pDominantTrackedRemoteNew, ov
 				finishReloadNextFrame = false;
 			}
 
-			if (pDominantTracking->Status & (VRAPI_TRACKING_STATUS_POSITION_TRACKED | VRAPI_TRACKING_STATUS_POSITION_VALID)) {
+			if (!isBackpack(pDominantTracking)) {
 				canUseBackpack = false;
 			}
 			else if (!canUseBackpack && grabMeleeWeapon == 0) {
@@ -243,7 +243,7 @@ void HandleInput_Alt2( ovrInputStateTrackedRemote *pDominantTrackedRemoteNew, ov
 
 				if (grabMeleeWeapon == 0)
 				{
-					if (pDominantTracking->Status & (VRAPI_TRACKING_STATUS_POSITION_TRACKED | VRAPI_TRACKING_STATUS_POSITION_VALID)) {
+					if (!isBackpack(pDominantTracking)) {
 
 						if (dominantGripPushed) {
 							dominantGripPushTime = GetTimeInMilliSeconds();
diff --git a/Projects/Android/jni/src/Lambda1VR/VrInputCommon.c b/Projects/Android/jni/src/Lambda1VR/VrInputCommon.c
index f1d3b15..42cedb0 100644
--- a/Projects/Android/jni/src/Lambda1VR/VrInputCommon.c
+++ b/Projects/Android/jni/src/Lambda1VR/VrInputCommon.c
@@ -212,3 +212,31 @@ void updateScopeAngles(float forwardYaw)
         VectorSet(currentScopeAngles, -weaponangles[ADJUSTED][PITCH], weaponangles[ADJUSTED][YAW] - (forwardYaw+snapTurn), hmdorientation[ROLL]);
     }
 }
+
+
+// Check if pTracking is within 0.4 of the HMD and in a 120 degree arc "behind" it
+bool isBackpack(ovrTracking* pTracking)
+{
+    const ovrVector3f position = pTracking->HeadPose.Pose.Position;
+    double distanceFromHmd = sqrtf(
+            ((hmdPosition[0] - position.x) * (hmdPosition[0] - position.x)) +
+            ((hmdPosition[1] - position.y) * (hmdPosition[1] - position.y)) +
+            ((hmdPosition[2] - position.z) * (hmdPosition[2] - position.z))
+    );
+
+    if(distanceFromHmd > 0.4){
+        return false;
+    }
+
+    double trackingAngle = atan2(hmdPosition[0] - position.x, hmdPosition[2] - position.z) * (180 / M_PI);
+    double angleFromHmd = trackingAngle - playerYaw;
+
+    if(angleFromHmd > 180){
+        angleFromHmd -= 360.0f;
+    }
+    else if(angleFromHmd < -180){
+        angleFromHmd += 360.0f;
+    }
+
+    return abs(angleFromHmd) > 120;
+}
\ No newline at end of file
diff --git a/Projects/Android/jni/src/Lambda1VR/VrInputDefault.c b/Projects/Android/jni/src/Lambda1VR/VrInputDefault.c
index b1f763c..a3ccf3f 100644
--- a/Projects/Android/jni/src/Lambda1VR/VrInputDefault.c
+++ b/Projects/Android/jni/src/Lambda1VR/VrInputDefault.c
@@ -46,7 +46,7 @@ void HandleInput_Default( ovrInputStateTrackedRemote *pDominantTrackedRemoteNew,
 	static float dominantGripPushTime = 0.0f;
 
     static bool canUseQuickSave = false;
-    if (pOffTracking->Status & (VRAPI_TRACKING_STATUS_POSITION_TRACKED | VRAPI_TRACKING_STATUS_POSITION_VALID)) {
+    if (!isBackpack(pOffTracking)) {
         canUseQuickSave = false;
     }
     else if (!canUseQuickSave) {
@@ -223,7 +223,7 @@ void HandleInput_Default( ovrInputStateTrackedRemote *pDominantTrackedRemoteNew,
 				finishReloadNextFrame = false;
 			}
 
-			if (pDominantTracking->Status & (VRAPI_TRACKING_STATUS_POSITION_TRACKED | VRAPI_TRACKING_STATUS_POSITION_VALID)) {
+			if (!isBackpack(pDominantTracking)) {
 				canUseBackpack = false;
 			}
 			else if (!canUseBackpack && grabMeleeWeapon == 0) {
@@ -243,7 +243,7 @@ void HandleInput_Default( ovrInputStateTrackedRemote *pDominantTrackedRemoteNew,
 
 				if (grabMeleeWeapon == 0)
 				{
-					if (pDominantTracking->Status & (VRAPI_TRACKING_STATUS_POSITION_TRACKED | VRAPI_TRACKING_STATUS_POSITION_VALID)) {
+					if (!isBackpack(pDominantTracking)) {
 
 						if (dominantGripPushed) {
 							dominantGripPushTime = GetTimeInMilliSeconds();
diff --git a/Projects/Android/jni/src/Lambda1VR/VrInputOneController.c b/Projects/Android/jni/src/Lambda1VR/VrInputOneController.c
index fa6f3d5..e7b1d1b 100644
--- a/Projects/Android/jni/src/Lambda1VR/VrInputOneController.c
+++ b/Projects/Android/jni/src/Lambda1VR/VrInputOneController.c
@@ -136,7 +136,7 @@ void HandleInput_OneController( ovrInputStateTrackedRemote *pDominantTrackedRemo
 				dominantGripPushed = (pDominantTrackedRemoteNew->Buttons &
 									  ovrButton_GripTrigger) != 0;
 
-				if (pDominantTracking->Status & (VRAPI_TRACKING_STATUS_POSITION_TRACKED | VRAPI_TRACKING_STATUS_POSITION_VALID)) {
+				if (!isBackpack(pDominantTracking)) {
 
 					if (dominantGripPushed) {
 						dominantGripPushTime = GetTimeInMilliSeconds();