Just wanted to send a huge thank you to TSR! Got to Chicago just in time for a friend to notice the tooth missing in my derailleur. (Could that have been the shifting problem?) Two bike shops an two tune-ups and no one noticed! I am now fitted with a Dura Ace derailleur only to PR at the International distance and set my fastest bike split ever at Chicago with a 1:05:16. I am sure it was because of my new acquisition:)
Thanks again for the help!
Kara:)