Finally a good post from you! Thanks. What you described, exactly, right up until the part where you place your bridge hand and pivot, is 100% what I've described as understanding fully. It's not difficult. The perceptions are easy to pick up. CCB is easy to see when I drop the perception visuals and focus straight-in to the CB. I have enough subjective experience to make a reasonable judgement as to if that CCB alignment looks dead on or is too thin or thick for the shot. There is no objective criteria here to guide the way -- it's pure judgement. I don't understand what's so difficult about acknowledging that fact.
Like I've said many many times, I know all of these steps....and I've taken it to the table. . It's that final step, the pivot or sweep that is not obvious. The bridge hand placement and bridge distance are factors that I do not know or understand. So I probe around and use a little pivot math trying to figure it out, trying to see exactly how much thinning or thickening is happening, trying to reverse engineer the process, and you act like I'm spitting on the system. When in reality I know the exact steps right up to that tweaking pivot. The instructions for placement of the cue shaft prior to the pivot are ambiguous, and they vary depending on who is giving the instruction. One almost has to figure it out on their own, through rote learning.