Doc,
Did he say if he also did re-padding? I've got a Corbin set that was "broken in" by the P.O., and would like to get it re-padded and recovered. First place I called said they wouldn't do it because it's a Corbin.
If you would, PM me your guy's contact info - it's a long way from Garland, but my wife's made it clear there's no more than a 2 hr ride until I do something about her comfort!
I have a Corbin seat that was on bike when I bought it. I continually slid forward on seat.
I found an upholsterer in old Irving who re-padded and recovered my seat. It looks great and I no longer slide forward.