[MENTION=185430]dddd[/MENTION] - Thanks for the info in #8 ! I will start playing around with my favorite rides based on this info!

The Pinarello has DA 8spd 7400 drivetrain and is nearly rub free. I can barely hear it in both extremes. Perhaps a little tweak here and there will eliminate the rub.
This info will help me attack the tandem issue too along with the Colnago. In a grab bag of parts purchased within the last year, were two 10spd chains. My try them out too!

The Ron Cooper is definitely a keeper! Looks hot and a joy to ride. Bikes like yours are very C&V in my book, simple, elegant and purposeful.