Thanks for the heads-up on the "fpsVR" app. Never head of it before. I don't know for sure but have read that SteamVR defaults to 100% SuperSampling and it should be 140% to match the Vive Pro. Its default. 200% must be a very sweet image if ones hardware can manage it. I bought a top RTX2080 specifically for the task. I hope it hols up.