It sounds like he aims the same way I do, only I call it heart to heart.
While standing behind the cue ball, I try to see the object ball's heart (or core),
knowing it's exactly 1 1/8" (1/2 ball width) above where the the ball touches the table.
Then I determine where the ghost balls heart should be (2 1/4" behind and inline with
the pocket). Then I align the cue ball's heart with the ghost ball's heart.
This is to say I aim with the cue ball's heart, not my cue shaft. I then drop down on this line
with what ever spin is required to put the cue ball where I want it for the next shot.
Using this method, I don't think about any form of compensation for throw. It seems to
self compensate.
Obviously, I am subconsciously adjusting but I don't feel it. It takes practice to ignore
the line of your shaft, and only focus on the heart to heart alignment. Of course,
you must stroke your cue straight through the cue ball where you need to for the spin.
This is of course a ghost ball method, and we all know you can't see a ghost.
However, with practice, and simple deductive reasoning, you can know where its
heart is. On most shots, I don't even have to walk around to see the OB to pocket line.
Try it! Works for me and others I have explained it to.
Dan