I have increased anti-squat in my RC8.2 to cruise through rollers (whoops) easier. This worked for me. What this did was allow the rear wheels to skip over the bumps instead of diving into the valleys. I did not notice much lose in traction on corners.

At that time I was using Avid -1mm rear inserts and the least amount of anti-squat possible. increasing 1mm in the C-plate made a large difference.

I have to assume that the 3-2 plate in the SC10 is already a larger amount of anti-squat and the 3-3 is too much. Maybe on carpet 3-3 would be good.