CLA for Leitz and Schneider in US?

Can anyone recommend a super technician/repair shop to do a CLA and minor repair on a Schneider lens and a Leitz lens? The latter might need more serious repair work, but I would like to send them both to the same place, if possible.

Suggestions? Thanks!

Karen Nakamura's recommendations and comments are at:

http://www.photoethnography.com/ClassicCameras/index-frameset.html?repair.html~mainFrame

I hear very good things about Sherry Krauter, but I don't think she works on Leica R equipment. I've been very satisfied with Don Goldberg (DAG), who will do both R and M lenses and bodies. Don't know if he'll do the Schneider, but you could contact him. S.K. Grimes should be able to do both, and comes highly recommended. I've never had them do a repair, but I have some spanners of theirs that make most others look silly.

Lee