So, on your cursory checks, are you quickly switching views, or rolling your eyes along the line?
This is what prompted me to start this thread. I had a friend, a good player himself, watching me last night (and I was struggling by my standards) and today he emailed me this:
"i was watching you shoot yesterday, very closely as usual. i realize people use many different methods of aim. you look at the cue and then at the object ball, over and over and then pull the trigger as you fixate on the object ball. maybe this is a requirement of your vision. an alternative would be to roll your eyes (as the pros do), back and forth from the cue to the object ball and back; that technique creates a phantom line that includes the cloth also. back and forth, back and forth until you see it and then execute the shot. some golf teachers teach that the swing is one move, not two. you have a two part aiming technique that i feel gets lost in the middle.
your leave game is excellent. i hope this helps."