void HandleFrameEvent(object sender, LMWidgets.EventArg <FrameData> e)
        {
            HandModel oldFound = null;

// attempt to reconnect to the last good id
            HandModel[] handList = ReturnPhysicsHand ? e.CurrentValue.PhysicsModels : e.CurrentValue.HandModels;

            foreach (HandModel handInScene in handList)
            {
                if (handInScene.GetLeapHand().Id == lastHandId)
                {
                    oldFound = handInScene;
                }
            }

// on failure attempt to find a new good left hand
            if (!oldFound)
            {
                CurrentHand = FirstRightHand(handList);
                if (CurrentHand)
                {
                    lastHandId = CurrentHand.GetLeapHand().Id;
                }
            }
            else
            {
                CurrentHand = oldFound;
            }
        }