i was watchin this vid
http://rap.about.com/library/graphics/1990.gif and this guy switches his hand doin 1990's, and its freakin insane. im also workign on '90s also, i get about 1 1/2 rotations. Make sure u kick up the correct way and put down the corect hand. I can be more specific if u tell me how ur rotating, CW or CCW