Led bulb tracking seems much better from testing than skeleton, which is unplayable for most games.
I would really focus on the tracking of controllers.. A option box in Driver4vr menu you can select on and off for controller placement for arrow games and option off for normal games like shooting with guns etc.
If you can just get the led bulb tracking of controllers improved this would be brilliant.
As an example, try and play the game eleven table tennis and you will see how bad tracking is
Keep up the good work!