Harmonic Balancer Rebuild??

Has anyone had their harmonic balancer rebuilt? Can you share any good or bad experiences and recommendations?

Thanks

Bruce
I used this company in Oregon, great results, reasonably priced and quick turn around.
http://www.dalemfg.com/harmonicbalancer_001.htm

Thanks Bruce - I saw them listed along with the "Damper Doctor" and "Winslow Mfg" in Hemmings. All seemed to be similarly priced. It's good to get an endorsement.

I'll throw another into the mix:

http://www.damperdudes.net/