I play 3 hours a day and dedicate an hour and a half to my rudiments. Since they are divided into 5 categories, double strokes, single strokes, paradiddles, flams, and drags, I pick one from each category every Monday and work on them for 15 minutes a day until the following Monday when I select a new 5. The last 15 minutes I spend on either the triple stroke roll, the blushda, or the eggbeater.