its his back structure and the highness of his insertions, not the size of his arms that are going to hold him back, and lets get one thing straight hes no priest and never will be, Lee has prob the best set of arms in the pros, the cells are there and always were, Flex doesnt have those cells, he will have a great pair of legs, but hes destined for a difficult time like Gary Strydon, hes holding his own all day he turns around and then its all over, Priest wih a great back would have pushed for the O, and his back has much better insertions and structure than flexs is, it will thicken but its always going to be narrow and high.