No, it works for anyone, I'm nothing special.That may work for you but of course it requires a great deal of "interpolation" between the few standard angle you use. It may work psychologically, but it has nothing to do with geometry. Here is a technical description of the coverage of shots for fractional aim if no fiddling/interpolation/adjustment is used:
Fractional aiming and required accuracy
One aiming method is to imagine the 2-D overlap of the cue ball as it lands on the object ball and connect the amount of overlap to the cut angle. The common fractions and their approximate degrees of cut are: full ball -- 0 degrees -- straight shot 3/4 full -- 15 degrees 1/2 full -- 30 degrees...forums.azbilliards.com
I seriously doubt if anyone has ever tried to describe how it's done in writing, it takes visual aids. Remember, the pocket is twice as big as the object ball and when you utilize the 3 part pocket system it makes a huge difference in margin of error and reduces the angles you have to create. I have people catch on to this and think it's some kind of magic lol but it's not, it's just taking advantage of the power and computing ability of the subconscious mind.
I did this for years and didn't quite understand how it worked, because when you really catch on it's like you aim the majority of your shots like they are straight in.....but the alignment is the key, you MUST align Center/Center or Center/Edge or it won't work.
This is what when you ask a champion player how they aim they will look at you like Michael Jordon would look at someone that ask him how he aims a basketball shot. There are only 8 total angles, however, there is another component that relies heavily on the alignment being the same every time. Most people align to the shot line, but that is NOT how you do what I'm referring to. I'll try to make a video to show how this is done, I'm working on another video project now, but may be able to put something together while it's fresh on my mind.