In an IDEAL world, I think you are absolutely correct. I watch a fair amount of snooker and Chinese 8 ball, and almost all of those guys (the straightest shooters on the planet) lock on to the OB and their eyes NEVER leave it.This is not a scientific answer to your question
But if the majority of pros for years and years and years, look at the object ball last,
it must be the better way to play
If cue ball last was really better
By now I would think all of the pros would do it.
Jmho
Icbw
I say "ideal world" bcz how many of us have the eyesight to be able to do this. I sure as hell don't, so I have had to adapt and (somewhat) overcome. When I am 5 or more feet from the OB, I can't help but see double if I stare at the OB. Therefore, on long shots (and when CB is on the rail - for different reasons) I look at CB while delivering the stroke. It helps me make a straighter stroke, hit the CB where I intend to, be less anxious about "result" , and stay down on the shot.
When I am able to lock in on the OB the whole time, I think I shoot a little straighter.
just my 2 cents