The cams weren't that noticable on idle, but roll on power out on the highway is changed, you can twist the grip and feel it come on.
Same here, I've had this bike just over two years also. Bought it from a guy when it was essentily bone stock at 7000 mles. It's been changed around a good bit, look in my albums pics. But I've changed my oil every 3000 and just recently switched to Amsoil. But I ride fairly conservative.