i'd say that walker also has more body control over TA, Tony drives through piles and finds a way to get it up there despite contant, Billy can throw an upfake, a spin move and drive to the hole HARD and have it be defenseless. like that play last night, once he beat his man he hung in the air and it was an easy shot, TA would drive by his man, still have him hanging on his arm, then have the big in his face, then throw up a miracle shot that sometimes goes in.
long story short, billy plays to score. TA plays more for contact and if it goes in its a bonus.