Veely INterestink! To quote Artie Johnson....
I'd like to give one of these a try. I'd like to get one of their 9mm cylinders to fit it to my 617 Ti even better!
I don't suppose they'll be making these in titanium?
BTW, I personally like the porting on the flyweight 617. It reduces muzzle rise when shooting hot loads, which results in getting back on target quicker.