Hi, I play one year now rFactor 2 with the G2 VR. the stutter (purple peakes) are ONLY in some tracks, older tracks. Canadian tire, Magny cours ..... but normal not. try Brands Hatch, NO peakes. New tracks ... no peakes. I test a lot too, I use the last nvidia driver 512.15 I found a performance isue / purple spikes on server where some people has custom skins on her cars. No custom skin, no peakes. crazy but I think is has something to do with bad optimization in VR with the skins, same with some older tracks.