Thanks for that report, mustang. It seems your machine is now back to running properly, and my confidence in Greenfield standing behind what they make is restored. Of course if they don't have any better pulleys to offer by the time you get to the end of your warranty period, it will become more than slightly annoying, to you and presumably to a lot of other Greenfield owners.

I'll close this thread. If anyone needs to post to it, just PM a moderator.