Man i'm really glad you're digging that as much as I do.
Just in case someone Googles etc and is unsure, the balls project is not the course itself- The course is called "just allow it" which is sold separately as a 7CD course, but he gives download version of it (not any shorter just doesn't have CDs/book) free to guys there.
From someone who has been to sedona method retreats with Hale and knows GP/his stuff very well, I wouldn't say it's based on sedona method but of course in SM and many others allowing is part of it, it's just usually somewhat glossed over. "Allow it.. ok now let it go" when allowing is really where the art of it is, and where it really gets processed. It's the willingness to be with what is there. It's the balls to actually be present with everything there instead of just "ok let's get rid of this right away so i dont have to deal with it or face it" which the mind LOVES to turn 'releasing' into (getting rid of). I know GP did some coach training in SM and a lot of other things.. his main thing now is actually EFT, but he didn't want to put that here yet either because then it's another "OK if I do this energy work/tapping/etc then THAT will get rid of it."
It sounds like your experience is just like mine, the more you get into this state the more true releasing happens because you aren't there trying to control it. Let go means you LET IT do whatever it needs to do not try to "let it go so that i will get what I want" (by definition not letting go)
This guy is the best teacher I have ever found - I met him on a free call, more of his content is free than not. He's like one of those musicians who is not super famous because all they give a shit about is music and getting better. So in that spirit
http://www.conversationswithg.com has maybe 28 episodes now, each about an hour, all free and downloadable. He's the same dude in the "on indifference" video I posted and if you write to the email on the bottom right of the video, about literally anything you want to ask, he does in fact and read and answer it.