RE: Shooting style
Hobbes,
The biggest factor in "instictive" shooting is in the attitude of the grey matter between your ears. The mental game is the biggest & most important part. It really doesn't matter if you shoot 3 under, split, draw to your ear or use a thumb ring. Shoot what's comfortable, shot with consistant form, develop a good release and positive frame of mind and you'll be away.
I started out shooting split-2 under 1 over with a top finger anchor in the corner of my mouth, switched to 3 under, and have finally settled on 2 under, 1 loosely over with an anchor of middle finger in the corner of my mouth. Once you get comfortable with a style the rest is just fine tuning.
Good luck and remember that the books are good starters but they ain't gospel.
RC