Okay.
I have a few minutes so I'll post up my thoughts. I developed this system on day when I was goofing around and it's far from mature, but it has turned the tables on my opponent enough times that it is definitely worth putting a little time into.
Obviously shots off the points are not high percentage shots, no matter how good you become at them, but I can frequently (maybe 40-50%) get a hit from a tough position if the ball is in the right pattern.
The other tough part is that the points are very inconsistent from table to table, both in their firmness and in their orientation. When you look at the side pockets, sometimes the points point in different directions.
So the first thing to do is to learn the reference points. The main one is, where do you put the CB so that if you aim directly at the point, the CB comes straight back at you. The margin of error is teensy on these shots because you have a curved surface hitting a point, if you miss your spot by a milimeter it could change where the CB hits the rail by a few inches.
Because a high degree of accuracy is required, I imagine tic marks on the end of my cue and visualize which tick mark I need to hit to get which angle. Imagine a clock but instead of having 10, 11, 12, 1, etc... you actually have the minutes ticked off from 10 (50 minutes) to 2 (10 minutes) Then when I line up the CB I put the tick mark I need on the point. Like I'm aiming a rifle. This allows me to control very, very fine differences in aim point. So I spend a few minutes once in a while just re-affirming those tick marks and watching the ball come off the point.
There are a few really important reference shots. (I'll try to do a cuetable if I have time later)
1) CB off point to center of far end rail.
2) CB off point across to just past opposite side pocket and back with english into side pocket of point hit
3) CB off point to opposite side pocket
4) CB off point to side rail between opposite side and bank into corner
5) CB off point to side rail between opposite side and bank to middle of end rail
6) CB off point directly to corner pocket on opposite side
I have found that if I just brush up on these reference shots and visualize where the tick marks need to be when I shoot them, that I can adjust to any point in between and get a fairly good chance to make a hit and an outside chance to make a ball. Especially if it's near the pocket.
The important part, like in the session I mentioned above, is knowing where you should hit it. Because I used this system, and I systematically chose where to hit the CB on the 9-ball I made, I knew how to hit it to make it again and I made it again on the third try. (The other two tries were close too btw)
I know that's confusing, but I don't have a lot of time at the moment and I don't know if I will have enough time to go through it in detail later this evening, but I'm happy to try and clarify or answer questions.
~rc