OK I'd like to see a lot of responses to this question
AGREE --or-- DISAGREE
Assuming player can hit the vertical center of the cueball,
Aiming involved two things that are both necessary & sufficient (i.e., these two things and only these two things).
(1) recognize the line
(2) place the bridge on it.
Any aiming advice that doesn't help either (1) or (2) is at best superfluous and more generally harmful.
For me personally, I would disagree.
And I think I see where you're going with this: I hope I don't spoil the game for you.
I don't actually know WHAT I aim at--but I certainly aim at SOMETHING! The more challenging the shot, the harder I stare at the OB. I've never heard of any instructor (and I guess that would include Stan) who doesn't recommend that the eyes end on the OB (with the possible exception of some "novelty" types of shots that require a lot of attention to the CB).
If someone were to set up a magic rig to hold the stick in the perfect line to make the shot, that I could align myself with, and form a bridge to, and then the rig magically disappears and I'm left to make the shot just by using a straight stroke on center CB....I wouldn't be able to guarantee what would happen--especially with a long shot.
By a quick, seat-of-the-pants calculation, with a 6" bridge, a 60" cue, a pivot of the stick that produces only a 0.01" change in hit position (basically imperceptible) on the CB would cause change in the hit of the OB of almost 0.1" on an object ball 60" distant--enough to miss most except the easiest shots.
The precision necessary seems to require attention to some sort of "aim" on the OB. If CTE doesn't provide that, then, in a practical sense, it would fall short of usefulness as a shot-making system on a stand-alone basis.
I think Mike makes (and I'm sure intends to make) a good point: a series of cue manuevers (even if they WERE geometrically productive) that only ends up telling you to "hit the CB at center" would not in fact be very useful as the primary tool to make most shots--even if it WERE perfectly correct geometrically. It's necessary to "aim" at the OB in some manner to achieve the accuracy necessary--at least on medium or greater difficulty shots.