11 degrees is the most I have used. It really depends on the driver, how it is constructed, position of the center of gravity, open or closed, etc. I am currently using about 9.5.
I would be careful of hitting "down" with a driver. Any downward attack angle will increase the spin which is bad for a driver. I have done much better since I have taken the driver down to low point and had the ball just slightly forward of that. Better launch and lower spin.
Thanks for the reply golfgnome!
I'm not sure I'm brave enough to step away from the yellow book and work on that yet. So far, the principles I'm learning are allowing me to keep it where I can find it, guess I'll just have to stick with playing shorter courses for awhile...
Kevin
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I could be wrong. I have been before, and will be again.