Set Deal Stage Win Probability to 0%

I agreee with the comments NINAD and JohnSoza above. We have to be able to adjust pipeline sales stage % to fit our pipeline model. at least in 5% increments, or we end up putting 3 stages at 90%. For example, if we have a signed contract we would call that 95% and only allow 100% when the cusotmer pays their invoice and services commence (and reps then can claim commission).