When you guys get on the kit for the days practice how long do you practice your rudiments for? I've improved my left wrist and my overall playing a lot since I started doing 20-30 min rudiment warm ups but I still think my biggest problem is not using my fingers enough, In some songs theres pretty fast drum rolls that I have real trouble pulling off, like the one at 1:47 of this song, http://www.youtube.com/watch?v=0SJOsYnqud0, anyone have any advice on improving this kind of technique, surely you need to use your fingers more than wrists for rolls of this speed and duration, im pretty sure its 16 strokes in total for the actual roll