Clint,
Yes the focuser is very nicely made and the more I think about it, the less it reminds me of the Cave unit. Most likely Bill made this too from scratch. It polished up nicely. The helix rides on a ball plunger with a steel ball. I thought about replacing the ball plunger with one that has a nylon ball. It may help smooth out the feel a little bit. I'm only contemplating very small modifications that don't affect it cosmetically, are reversible and help with the function of the scope