To be perfectly fair to Gerry I know he doesn't use manual pivots. All his videos are using visual sweeps except this one. If my memory serves me correct this video was done in response to someone asking whether a different bridge distance was necessary for different shots. Gerry feels it doesn't but I do recall there being a graphic on the second DVD about bridge distances for manual pivot.
I think the general idea is to understand the manual pivot then move on to visual sweeps. Like Gerry, I find it a more natural movement, you're not moving your line after you are down on your shot and certainly you're not concerned with bridge distances.
So if you think you've found some "secret adjustment" I think you'll find it's just a quirk of Gerry's pivot. Since he really doesn't use manual pivots I'm not sure you want to build your case on his manual pivots. He's moving his head as well as his bridge when he pivots which is not what you want to do.
My bridge or head doesn't move when I pivot and neither does Stan's.
Look at the first 2 shots in this video
https://www.youtube.com/watch?v=yWUc1gm9gjI
So we can't assume Gerry is performing the manual pivot properly?
And Stan's video shows no noticeable pivot adjustment, but the shots he plays, I could reproduce easily making a guestimate of a visual and then pivoting purely. That's not a critique, because it wasn't his purpose in that video to prove no bridge adjustment. I'm just saying, that video doesn't disprove that some CTE proponents don't keep the bridge in a set position after original alignment.
I'm curious why CTE proponents rarely if ever pick up on their fellow enthusiasts erroneous application or claims.