I'm running the 120a Hobbywing ESC that can also run 1 cell. It's coping very well with my Tenshock motor. Very pleased.

Switching to the Avid slipper would mean changing all your spurs and making sure you have spares and do they not make a 32 pitch spur? I don't think a 48 pitch would last long on some of the big SC10 4x4 motors!