It usually only takes one or two....What makes it look right? What made it look wrong?
This was is a clip from your prior post....
I am pretty sure that falls into the catagory from your list of "spot" aiming.
You also mention the outcome of "overcut" and "undercut" which suggests "fractional" aiming is perhaps getting in there somewhere.
Again.....You have probably hit so many balls that this is all second nature to you.....so now you can get down on the shot and say to your self...."It looks right"
I am pretty sure being able to get down on a shot and just tell yourself it looks right is the goal of almost any pool player....However....until then...there are "various" methods to help players "test" his/her hypothesis
I (like I belive you do as well) believe more devotion should be spent on PSR and foundation fundamentals.....Grip, Stance, Posture, Alignment.
"aim" IMO is just a small portion of the fundamental "Alignment"....
hmmmm, no. The "spot" on the ball I was trying to refer to is where the cue tip hits the cue ball, though I can understand how this might be misinterpreted.
As to the fractions, I know there are guys out there that divide the object ball up into 64 slices, but I'm not one of those. It's more a scooch more or a smouch less type of thing, more or less

As to what makes it look right it's like asking what makes a putt look right? Or how do you know you're going to sink a basket? It just does.
Lou Figueroa