Steve,
It's unlikely that you will find any feedback from the Gang. His 3 pc longbow is currently in the R & D phase. He has built a few of them but they are only prototypes.
That being said, I do have one of his prototypes and will share some insight. It's a smooth shooting longbow. No hand shock, quiet, points very well and the speeds are comparable to his recurves. I can only foresee this bow getting even better.
I'll post a few pics, but please keep in mind that this is one of his first bows. Much has gone into the design and aesthetics since then. Production of these longbows should begin in December. (That's if South decides to take a break from hunting. LOL! He's currently field testing his longbows)
I'll be more than happy to address any additional questions.
Riser Pics