My 1996 Litespeed Classic is smooth,fast and light, so much, that I don't ride it!!
The thing feels like I am riding on air and gliding. I ride my old vintage bikes, where I get some feel. They are heavier, I have to put some effort into shifting, no where near as smooth as the Litespeed, however, they got something the Litespeed don't have..What is it? Can't put my finger on it, but it is there!!
My choice for both of your bikes would be to throw a vintage bike in there, something like a Paramount, Raleigh Professional, etc.. and see what gives...