Which spec to VR PC ?

[melmac]

Not recommended though ... more than 3 sensors isn't recommended nor really needed (with 3 sensors in the right places it becomes pretty difficult to occlude anything with your body.

It depends on the size of your area though. And the "not recommended" isn't really a problem, they use that a lot. For example, 2 sensors in a diagonal configuration for 360 play isn't recommended but works perfectly. I have a 4 sensor setup myself and it works flawlessly.