I've been watching him take jumpers for the last 5 years, and I always know when its gonna go in, and when it's not.
Take a look at his feet when he's shooting, when he takes 2 steps (gather) into his shot, its a 90 percent chance that it will go in, but when he doesn't take 2 steps *gather) into his shot, he has a higher percentage of missing it.
I wish someone would compile/link a video of this for I am not tech savvy.
I know this has nothing to do with anything, but next time he takes a shot, look at his feet.
Cheers!