You might want to reread the section on set up. He talks about where to position your head. He says that you can put it anywhere, so might as well center your chin over the cue. That seemed odd to me because everybody talks about putting your dominant eye (or at least your "vision center") over the cue. This opened my mind to the idea that the placement of your head/eyes is a choice and not necessarily mandated by your dominant eye.
Through many hours of trial and error combined with video feedback, I found that while I play left-handed, I now have my non-dominant right eye (inside corner) over the cue. For whatever reason, I found that my straightest alignment of the cue happened when I put my head in this position. It isn't like I am compensating for some weird arm position or anything like that. In fact, my upper arm is directly over the cue looking down from the ceiling.
I used the Wilson recommended "orthodox" body position as a starting point to get me where I am now, which is definitely less orthodox. Who knows, now that I believe I have found the things that are important for a straight stroke (at least for me), I might be able to go back to a more "normal" set up with the knowledge I now have. In other words, I might have changed some variables that really didn't need changing. (Not that I'm in a hurry to test that theory just yet).
So to sum it up, I think Wilson's head position is a choice, not something he just naturally set up to do without thinking. I haven't thought through and studied dominant eye thinking re pool that much, but it seems to me that many on AZ are doing a disservice by saying that "dominant eye" "vision center" "whatever" dictates where you should put your eyes.
Just some thoughts.
Proof of it is in the pudding. Meaning, it is very simple to find the answer. All you have to do is test it on the table. Oops, forgot who I was talking to...the guy that likes to claim others are doing a disservice without actually testing anything out first.
