I seem to have a habitual bow-lean. I have tried all sort of trick to prevent tilting the bow, including curling the bow-hand fingers in beside the handle, so that they make a fist. The best solution seems to be to relax the bow-hand and just shoot fast.
I try to shoot with a quick, flowing rhythm. I breathe in deeply between shots, then breathe in before I draw. I then draw most of the way up in one motion, with the pre-draw slowing down as my hand reaches my face, and then finish the draw and sighting in one motion. From then on, I try to concentrate on following through the shot properly, to arrive in a consistent position at the end of the shot. My perfect shot takes about 5-6 seconds from start to finish.
The three foundations of my shot (and I am beginning to believe, all good shots) are a strong bow-arm, good line, and clean shot execution. I'm working on the bow arm and execution at the moment; in the last couple of years I improved my line considerably, but neglected the other points.
I don't believe in aiming off in a wind. There are very few days (even in Britain) when there aren't lulls long enough to shoot an arrow, so I wait for the lulls and shoot in them. If the wind is steady, I adjust my sight. (I have been caught out by the wind a few days though!)
The photos page contains pictures of me on full draw, follow-through, and my old style, when I used a side anchor and a two-finger draw.
There are also some training videos of me shooting, with views of the front, side, above, my line, my loose, my bow hand, and a shot from the back, showing the back muscles working.