<gulp>Agree w/squirtdad, some friction thumbies are not a bad idea at all. Rapidfires would be a waste on that bike. But, I did notice that both limit screws are backed out to near maximum, if not maximum, and wonder how well it can shift like that. When you say it moves easily, is that through the full range of motion necessary for a shift? I also find it hard to imagine that the cable core isn't seized in the housing somewhere. Have you checked how free (or not) the cable core of both shifters are in their housings? What is the condition of the guide that routes the FD cable around the bottom bracket? Is there a guide that routes the FD cable around the BB? Even thumbies will appreciate that kind of groundwork taken care of for them. Good luck.