Due to the ranging opinions on Saw, it must be down to how tall you are. When I call Saw rough I mean it bashes the hell out of my head by forcing it in all directions and hitting the restraint. Also I find it really hurts my neck at some points (e.g the transition from the drop after the MCBR into the dive loop) it just feels like it's being forcefully pushed into really uncomfortable positions, it's hard to explain. It's a different "rough" than you have on Colossus imo.
However in it's first year I never had that problem
Anyway, sorry for going off topic. I'm really hoping the Smiler doesn't have this issue at all as it ages, it most likely wont.