Roger Mason is a shooter. Last season with the Spurs, though, Roger Mason did not shoot especially well. Roger's TS% dropped from 55% to 49%, largely due to a sharp decline in three-point accuracy (42% to 33%). What happened? Last season's struggles must have been at least partly due to a torn ligament in Roger's right (shooting) hand, an injury which required surgery this past May. The consistently incisive Sebastian Pruiti, though, identified some other factors that might have screwed with Mason's stroke. Namely, his habits of shot location and form might have been out of whack. A sampling:
Notice in the make, Mason jumps straight up and down with his feet in the same exact position as when he took off. In the miss, Mason jumps out instead of up, but that isn’t even the biggest difference. Notice how he brings his feet together in the air, landing with them right next to each other (instead of shoulder’s width apart).
Why is all of this important anyway? Well, shooters want to try and do the same thing every time they shoot the basketball. The best are able to do that (Chris Ballard’s fantastic book "The Beautiful Game" goes into detail about the lengths that Ray Allen goes to so he can jump the same exact height each and every time). Roger Mason was so successful shooting one way, but he changed that over the course of one offseason. That little change in his lower body seems (at least to me) to be the thing throwing his shot off.
Y'all definitely ought to click the link and check out Sebastian's videos for the evidence. There's no doubt that Mason's injury affected his shooting, but as Pruiti points out, he might need to readjust some other elements of his form to revert to his bombin' self this season in New York. My suggestion: Learn to dunk from behind the arc.