I have been using neither and just running the Rift at it's default setup with Assetto Corsa set to 'lock to horizon' in the settings. Everything else is just graphical settings. It would seem that it's better to use RHM with VR. However, every time I launch my Platform Manager it's always asking me to install it's VR motion compensation software which I assume does something similar? For those with VR and a NLR V3, what software are you using and what are some best practices for tuning it?