Fred is on to something here. The American style of 9-Ball for decades has focused on using draw or stun shots to play much of the game. The filipino style (probably from years of rotation) is to use follow for the most part. For an American player to convert successfully to the filipino style of play can take years. The filipinos are the masters when it comes to following the cue ball. Parica was the best I ever saw, then Efren and now Dennis Orcullo.
No one can draw the ball better than a top American player, like Larry Nevel or Shane. We grew up on these shots. I know that I can only play the game that way. I learned from watching Lassiter, Don Watson and George Rood, all who mastered the draw/stun shot. It wasn't till I was in my 40's that I learned that following the ball was a more accurate way to play the game. Too late for me.
Our best players (Shane, John and Rodney) have also taught themselves to shoot successful follow shots, but they still rely more on draw shots than most of their Asian opponents.
An interesting side note (to me anyway), the American players who excelled at Straight Pool, all followed the cue ball well. Mosconi and Caras were the masters, and Mizerak and Sigel were comfortable going forward as well. No wonder they played such good 9-Ball. Buddy and Earl were two other American players who mastered both type of shots. In fact Earl's patterns at 9-Ball were very similar to how Parica played the game. Earl is the only American player I've ever seen who could follow the ball as well as a filipino champion.
My point remains that most American players (even today) when faced with a choice, will shoot a draw shot for position, and not try to follow the cue ball. Watch Shane (Johnny, Rodney and Hatch too) sometimes and see what they do. They still favor the big draw shot over the long follow. They grew up learning to draw the ball, so it's the shot they are comfortable with. My personal observation is that among the top American players, Shane follows the cue ball the best. He is still young and I suspect learned a lot from playing so much pool with the filipinos at an early age.