Well last time I bought something from Bob I had to re-purchase it because he sent me the wrong parts and every time I've called him he screens his calls (must be a reason for this).  Hes given me an uneasy feeling in the past plus the guy who originally did the engine I now run, had the works done by Bob and somethings had to be re-done very shortly after.

Not sure if Mike Steiner does the gears himself, if he does he probably does a good job as he does top notch work.  If he sends things out I wouldn't trust it so much.

Pistol Pete Schemberger of Hybrid Engineering; have not heard that name in a while, not sure if he's stilling doing 500 stuff or not but I believe he worked out of his garage in between his 9-5.  Can't remember hearing anything bad about him though.  He was getting in to a lot of the drag stuff, CPI, Liger stuff with the Chris and Big Jim.

I had mine done by Greg at WCR and he polishes and cryos the parts when done.  Price should be reasonable about $200.  He does use a mill (not by hand or eyeball) and seems to know what he's doing.  This is my 4th season about 100 hours and no issues, in fact the more I ride it the better it works. 

Greg or his "wife" did how ever misplace my package and it took about a week extra to get it back after calling him a bunch when it didn't show up on time.

Seems like a decent guy and parts came back done right and working good.  Plus I know 3 or 4 other guys who all have WCR trannys and haven't had major issues; Bad Moon, El Diablo, Me, No Pick, and I think a few others

X2 on WCR as long as you follow up with him.