I too have struggled with CTE on and off for quite some time. What I seemed to struggle the most was how to determine if it's a right pivot or left pivot.
This past Christmas I received Dr Daves VEP series. On the first disk they discuss how a 3/4 ball hit equals a 15 degree angle, half ball hit equals a 30 degree angle, and a 1/4 ball hit equals a 45 degree angle.
Shortly after II re-watched Stan's dvd (first one published and second one published and watched some of his YouTube videos ). During that time the light bulb finally went on for me in terms of how to decipher the pivot.
For example, now when I'm uncertain on the pivot, I go through the manual steps of finding the contact point on the object ball and the angle into the pocket. Depending which side the contact point is on A B or C helps me determine if I need to thin the shot angle or thicken the shot angle.
Plus if I now know if the visual is between B and C, in most cases I could choose B with an inside pivot or c with an outside pivot (Stan covers this piece of material I believe in his second dvd ).
I will confess up front that I'm an amateur player who is very passionate about the game and has the desire and motivation to and is look for ways to improve. I understand everybody is different and the above suggestion on what helped me with CTE may or may not work for everybody.
I do feel that now that I have a better understanding of CTE and the pivots I am a my way to greater successes in pool.
Thank you Stan for being a dedicated to getting this information out to the public!