Join Date: Dec 2003
Location: Tucson, AZ
Bikes: Custom Zona c/f tandem + Scott Plasma single
In our many decades as tandemistas have used all kinds of shifters; from downtube to barends, Gripshift, STI triple, Di-2 (electronic), etc.
The most reliable and easiest we have found are barend shifters. No fancy internals, no fidgeting and very long lifespan (50,000+ miles).
Yup, that's what we have on our tandem right now.
Do as you like, of course, but hang on to those barend shifters, you may want to go back to 'em!
Rudy and Kay/zonatandem