I've been running 1.7.2 rsg and when resetting I've been pre rotated. I see it's a banned strategy but I don't know how it works and I can't stop. Maybe edit the rules post since it doesn't say how or how not to.

aight guess no one knows

When you look around before starting a timer and if catagory has rules on third person camera before starting then dont do it! If you really want to prevent it just start the timer on your first input its a rule in some catagorys

If you move your mouse around during the world load screen it can cause pre-rotation

ive experiened that in many different games, the best fix is as dken said, dont move ur mouse