Have you read my post on how to get into the shot? As long as you identify the center of the CB as you need to (using the proper sight lines), the rest is fairly easy. At least as easy as getting into any other shot. Once you have that reference point, you just have to move your bridge hand into position as you would for any other shot, only this time it is to place your cue tip 1/2 tip off of that center point, then pivot back to center. That really is not that complicated or difficult. In fact, if someone can't do it, they will have trouble moving into any shot.
Once a person learns to sight the lines repeatedly, the rest is simple. I have posted a more objective way to do this that will work for each person already, allowing different people to compensate for differences in how their eyes see things.
When I first started trying this, I was terribly frustrated. After sighting the lines as described on the dvd, I would move into the shot as I thought the DVD said to, pivot to center and shoot, and I was missing consistently. Because I thought I was seeing things as described, I assumed it must be how I was coming into the shot that was wrong. I realized that was not true when I tried some straight in shots, and saw that I was way off after the pivot. I realized that I was not coming into the shot wrong, but that my original sighting was wrong. I then made adjustments to my sighting reference points until I was straight in on straight in shots after the pivot. All of a sudden I was sighting, placing the tip 1/2" off center, pivoting, firing and the balls were going in. Making the corresponding adjustment for thin cuts allowed me to correctly perform the sight lines for those shots also.
The system is not difficult once you see how to sight the lines correctly for the way you see, so that you get into the same line that Stan describes. Once you have that, the rest is simple and repeatable with practice. My frustration with the system is based on the difficulty in identifying the correct sight lines and pivot quickly for each shot. Also, it definately takes practice to sight things at varying distances.
If you do what I said to determine how YOU need to line things up to be correct after the pivot, then you will end up in the same line that Stan will using his sight lines. Thus it should be the reference points for the sight lines that change for each person (if needed for their visual perception), not the resultant line of aim. Fortunatley, it is very easy for each person to figure out those reference points for themselves.
Patrick, I wrote the above post directed at you, but you have not responded to it. It addresses how anyone can find the needed points for their way of seeing things to get themselves into the same final line Stan is getting into.