I modified the CS diagram. It's more like what I was talking about now. The original post might have made it seem it was a much easier shot. The angle on the new diagram is much steeper now.
Steeper to the aperture but the shot's a straight in. I think players might have a tendency to equate aperture to pocket speed. Translates to habituated sloppiness. I don't buy it.
How do the players here that use fractional aiming recognize what fraction the hit is? The basic ones, full, 3/4, 1/2, 1/4,1/8 I can usually see, but its the 3/8 , 5/8 , etc .. those are the ones that give me real trouble.