I don't have it in front of me, but if I recall correctly there are a few ways to configure the jog and shuttle wheels... some are more precise but slower, and never skip frames; some are faster and smoother.... if you don't figure it out, I'll check when I get home...
How does this mouse handle FCP? I especially want to know how the ball works. Does it merely control the pointer? Or can you scroll horizontally on the timeline with the ball?