Go through this thread at Boatdesign.net:
Awlgrip Knowledge Challenge
Take notes as you go through it. It's 2 1/2 years old and 38 pages long. There's lots of good info, but lots of noise too. Basically there are two general schools of thought; roll and tip, and spray. There's lots of discussion on all aspects of both approaches, much of it by professionals. But again, take notes, or you'll forget all the good info by the time you get to the end because of all the off-topic noise. Well, unless you have a better memory than me.
Dave