This topic has been discussed thousands of times. There is one key problem with changing Shaq's technique and that's the fact that he makes them constantly in practice. Many times Shaq has worked with people who have claimed they have improved his technique based on how he shoots in practice, only to see him put in a game and go 3-12 from the line. The problem with Shaq is purely mental. If you don't believe me, watch clips of his college games. The guy was a really good free throw shooter, then he went to the NBA and suddenly he can't hit it. It has nothing to do with his wrist, it's been an issue with Shaq from day one, the wrist is just another excuse. The free throw has always been Shaq's only weakness, if he could hit them consistently, his numbers would be even more scary then they already are.