Re: Is having your shooting arm in front of your face detrimental to your jump shot?
I agree with everything Pushxx said. You should go with whatever feels natural for the most part - just look at Shawn Marion and image how many coaches tried to get him to change his shooting action (okay, maybe Marion isn't the best example, how about Michael Redd's unusual technique?).
At one point I got heavily into my shooting mechanics, but I realised later on that in a game situation, you don't have time to think about every little aspect, and I found when I wasn't over analysing I made a lot more.
So essentially, just try and find what works for you.