All four of them shoot extremely well, but they all have different styles of stroke. Earl has a very long bridge, with the cue more under his right ear than his eye, and he twists his hand on every shot. Efren uses a somewhat faster stroke, but how he strokes seems to be adapted to what type of shot he has. Bustamante has a very long bridge, with a very loose wrist and has a very wavy Filipino style stroke, and on his practice strokes when he brings his tip near the CB, his tip looks like it's about 2 inches away from the CB. Allison is a fine example of textbook mechanics, she shoots very straight and has perfect alignment. What I am wondering is how all of these styles can work so well for each player. They all shoot extremely well, and Earl, Efren, and Francisco dont have very straight strokes. When you watch them shooting while they are facing you, you will notice their cue does not go straight forward and backward in their stroke, it goes either inwards or outwards. Allison is perfectly straight. How important is it to have a straight stroke then, if all of these styles can be used to play at the champion level? Is there one thing that all of these players (mechanics-wise) have in common? Does good mechanics necessarily mean a perfectly straight stroke? If so, how come many professional players play so well, and when you watch them, their strokes don't seem very straight?