We have a guy on the Howard Hill email list who went and speaks very highly of it. I have the book and video. They're good.
Here is a link to his web site:
http://hometown.aol.com/weshood/myhomepage/index.html The school is called Whispering Pines.
It's pretty expesive at around $400, plus local lodging. Either three or four days. In my case, when you add travel from the west coast, it's out of the question. If i lived down south, I'd try it. Oh, yeah... it's in NC.
He starts you out putting markers at aiming points and making a table of all your distances, then has you shoot till you forget about where the markers are. I may be doing it an injustice, but it seems like every other system except Asbell's... start with gap and train toward instinctive or split vision or whatever you call it. I've gotten to where I think what I'm doing is split vision, but it took me well over a year of doing a lot of shooting on my own. I'd have gone to a school instead of buying another bow if there had been one here on the west coast.
Dick in Seattle