As for the twisting, you probably have an oval dick, so:
1. Start wrapping about midway on the head (instead of behind the head, literally start on the head). I also use a hair tie wrap, or scunci as some call it, under the theraband. MUCH easier than trying to wrap with cloth first. Check out this thread:
2. Toe ‘out’ your hanger (I think that is the term.. Your hanger looks like a V when in place versus an A.the bottom outer screw has less thread remaining than the inner bottom screw) and make sure your top gap in less than your bottom gap (your top adjustment screw will close more than the bottom ones). See pics here:
Bibhanger toe in/toe out/gap settings pics
3. Position your dick so that your head exists ‘slightly’ higher than midshaft.
Wrap the baby sock over your head