I don't fully understand the 30 degree rule. Supposedly, it implies that any 1/4-3/4 cue ball thickness shot will deflect from aim line by 30 degrees or so, assuming it has forward spin.
But doesn't the amount of forward spin change the line of deflection (as demonstrated by drills like the wagon wheel drill)? So when exactly do we get 30 degrees? With a very very specific amount of forward spin? Can someone explain please?
But doesn't the amount of forward spin change the line of deflection (as demonstrated by drills like the wagon wheel drill)? So when exactly do we get 30 degrees? With a very very specific amount of forward spin? Can someone explain please?