I too am frustrated the GRIZ are inconsistent FT shooters. I can tell though, Will Cherry has put A LOT of time practicing FT's. His FR year, not only was his % bad, but the ball and his upperbody had way too much movement. Now, he is a 75% ft shooter, and looks much better from the line.
Art Steward is inconsistent. Jamar will get better. Wood has no confidence with any kind of shot (sorry, he is too much of a liability on offense, time to keep him on the pine). Reader and Ward, both look solid, they need to just find consistency. I have not seen enough of Hutchison to have an idea. I expect Deshields is capable of being a good ft shooter, again, have not seen enough of him. Weisner, just looks like he can shoot from anywhere, so I would think he is good at the line. Selvig, just like rest his offense, he needs consistency.
I really do wish I was in Missoula, and could watch these guys in person more. It is really hard to evaluate over internet feeds, and an occasional tv broadcast.