Had '04 & '06, both were decently smooth with edge going to the '06. Moved to an '09 (which I wish I'd never sold) and then to a '15A. The '09 was the smoothest FJR I've ever ridden, like riding an electric motor. OTOH, the '15 (with a lot of work) is OK smooth, but still a buzz bomb and nowhere near my beloved '09.
--G