Hank, I reviewed your posts once again, and I see you put in the practice and done your homework viewing videos and books.
Therefore we might need to delve further. I was wondering when your banking, is there a consistent pattern whereas the bank either goes long or short, or is it inconsistent whereas either long or short can happen"?
Hopefully there is a consistent pattern, for this can be fixed, by you have to eventually realize that your brain is telling you; "that this is the correct angle", but eventually and at some point you have to realize it is the wrong angle, and thus you have to override it. It is like changing a bad habit. Tell it no, that can not be the angle. Seemingly simple, but that is why players miss a shot the same way all the time, they think this is where they need to hit it. The older you are the harder it is to get out of this mind set.
Now if the bank is inconsistently going long and short, then you will have to use aiming methods. Aiming methods, such as in your case whereas you have studied books and DVD's, can befuddle you for there are so many variations, just to much going on in your head when your down on the shot!
I gave you a new one, that probably not in a book or DVD, aim straight at the ob and see if that does not pop the angle out for you. The other is to keep it simple, by just dividing the angle in half by using the diamonds. I keep it simple, I try not to over think it. The thinking part is before your down on the shot, never once you are down on the shot.
I am saying all of this, for in instructing this one pupil, he had so many aiming methods, and so much going on in his head, he just could not simply lay down on the shot, and I think this might be going on with you.
To answer your question, what makes the light go off and you see the angle? I think after you go through the progression of the above mentioned then the light comes on. If not, keep persevering. I hope it happens! For when it does, you go whew, that sure is nice. Its a freedom!
Another thing that is helpful, is always rack and break the balls when practicing banks, this gives that, 'purpose and focus'. Never, just throw the balls out, that is for goofing off, or used as a calming effect, or just to practice a particular shot.
This seems quite long, but when we have such little info. from you then it creates so much more speculations! Tell us what going on in your head before and when your down on the shot, ok! Mentally and being physically sound plays a huge role in pocketing balls. I've struggled with this for some time, and it makes for inconsistency. Fred Whalen states; "Top Billiards takes a sound mind and healthy body. Whitey