Thanks CA!!! I kind of knew about the tires but didn't really know the terminology. Sorry I'm such a goober. I am going to put slicker tires on my current bike just to see if I like it. I've only got another month or two to try them before I'll need to switch back because the weather around here will start getting pretty wet pretty soon and I might need my knobby tires then. but maybe not. Thanks again for the advice.
Gray