I just bought John Riley's The Art of Bop Drumming haven't dug into it yet.  Still working in Studio/Jazz Drum Cookbook by John Pickering.

dw

Hey there.  Just wanted to throw in my 2 cents.  If you want to work on bass drum technique, there's a really great book that's kind of hard to find.  It's called Feet First and it's written by a guy named Mike Packer.  I know that jazzers play heel down a lot, but this is a great way to accomplish the same thing with less effort.

The book is mostly about playing heel up and out of the head (thus giving you the most power and tone).  There are 2 strokes with BD technique - the ankle stroke (just like heel down, only your heel is up - think like dribbling a basketball with your foot) and the down stroke (basically your heel comes up, the toes and ball of your foot provide the stroke by using the weight of your leg coming down, and then your heel comes back down to rest).  I know this is hard to get by reading, but bear with me.

SO, those quick doubles you're trying to get (if you're playing heel up) are accomplished by an ankle stroke, followed immediately by a down stroke.  If you're playing heel down, then you just have to get faster.  However, the heel up technique by Packer can generate incredible speed.

Hit me back if you want more info.