JS is for perimeter players (SF, PG, SG) and Inside shot is especially for Center, and then 4 PF, cuz even PF sometimes has to make a 3-point shot.
Jum Range doesn't count for inside shot, I think, but it does 4 Jump shot, because, it is more likely that a player with strong JS and pitiful jump range will miss the long 3-point shot than a player with a respectable jump range and respectable jump shot?
clear?