I've took some Perfect Aim lessons, and while it has to deal with eye alignment and how you see, there wasn't any pivots, edges of balls, etc. Maybe there is a similar base/idea of vision but Perfect Aim didn't leave my head smoking by trying to understand what I was hearing. The post you quoted at least gives me something to try out at the table. I'm honestly not knocking or doubting the system, but I'm having a hell of a time parsing what the video is presenting, as such, I assume the video is for people in the know about the system already. Please realize I'm not trying to compare systems, just trying to relate to something I understand.
For example, "ticks." WTF is a tick? After 3 videos and smoke coming out of my ears, I'm assuming it's 1 degree out of a 360 degree object. I THINK that's what Stan is talking about, but if it were ever actually said I must have tuned it out. If CTE has the secret to hitting 1 degree on an object, then hot damn, that's a hell of a calibrated eyeball and would be useful to have. That said, thinking of the sphere as 360 or 180 ticks is giving me analysis paralysis. What do I do with the info and how is it put into useful practice? Does the book parse this in a way it could "click" for me? I legit have ADD, so I'm not faulting the info if it's presented in a way that requires multiple watches to understand. Sometimes info is hard to present and it requires the student to really do some study until it "clicks" for them. I'm hoping the book is presented in a way that lets you pick it apart in depth, because that's kind of how my brain works. I can get into super nit picky detail in reading, but sometimes I just zone out with the spoken word. With some dense (tightly packed) info I can almost feel the neurons forming in my head

, but once the info is there, I can see the connections.
The 90 degrees in a corner... I'm not a math idiot, I do metrology work daily and have a good understanding of trigonometry and 3d geometry, Geometric Dimensioning and Tolerancing (GD&T), but in the table geometry, how the hell does 15, 30, 45 relate to the 90 degrees in a seemingly arbitrary corner away from where the balls are, or 180 in the side? Again, not doubting, but it wasn't explained what the hell it meant in the video. If it's a supplement to the book and meant to not divulge the secret without a book purchase, I can accept that. If I wrote a book on a subject I was an expert at, I would want to sell some copies after all. Does the book accurately describe this 90 degree relationship to the various other corners on the table?
Being "fluent" in GD&T, I can understand the glazed look in people's eyes (even engineers) when I try to explain why the symbols on the print are incorrect, a better way to functionally dimension the part, how different callouts control different aspects and relate to a functional datum structure. I get it, unless somebody uses this stuff every day, it's hard to even converse with them about what the issues on a blueprint even are. Maybe I'm just seeing someone who is fluent in CTE talking like it's normal conversation and it's flying over my head like "egghead talk" or something. If I went into fourth year physics class and listened to them give a dissertation, I would be confused as hell without taking physics 101 first.
I guess I'd like a relatively unbiased opinion from someone who has looked at the book, is the info there and able to be "picked" apart until it makes a coherent thread? I'm not asking to be spoon fed the info or have it dumbed down, just asking, is the info there presented so it's actually able to be parsed by someone willing to study it?