I've searched about this topic but I have not read anything about drilling a second valve stem hole on the backside of the wheels. This is what I am planning to do since I want the system to remain functional. I will end up with two valves per wheel with the stock ones being the ones on the backside. The backsides of the wheels' barrels have the right step/angle for the stock stems/sensors. What do you guys think? Anybody done it this way?
Thanks for any input.

 

Why don't you just strap them to the inside of the wheel? that's what i did with my Volks.

 

I drilled my RIMS bro. IT works great. Take it to someone who has done it before, and you will be fine.