Re: Becoming a catch and shoot player
Physically I'd say what was already mentioned, elevation, but I'd add a strong core/back. When you're trying to stay square a lot of the time you can make up for poor balance if you have a strong core.
quick release - I used to practice by throwing a ball off a wall and having to beat an imaginary .05 shot clock. You get used to it.
foot work - if you're feet are square you get increased elevation and balance
high release - if you can't add vert you can learn to adjust your shot to release at a higher point (think kobe/kg being the extreme on top of their head) but that takes even more strength/stamina (esp in the triceps/back) but if perfected would make for a very difficult shooter to match up with