Went to Mellow Johnny's bike shop in my free day in Austin. They had a Santa Cruz Superlight I wanted to try. On paper it seemed like everything I was looking for -- a little smaller than the Tallboy, and cheaper. It rode OK on pavement but the backend was really loose on gravel or slick grass. Sitting right next to it was a Santa Cruz Tallboy, same bike I rode in Fairfax except maybe different front fork. It was a raw aluminum look and is sweet. When I rode it in Fairfax, I thought it was way too big for me. This time it felt right and I had no problem getting on it. Could the rental have been setup differently, or am I just getting used to adult sized bikes? I rode it and it was great and the size feels good. Then took a rental Giant Anthem on a trail here, which was all rocks and not a lot of fun. The Giant was a size small (all they had), which fit my legs, but I was really cautious about going over the bars and now I see the benefit to a proper fitting size for the torso. Then stopped by Bicycle Sport Shop where they had the exact same Tallboy for $350 less, except they don't want to be accommodating on shipping/sales tax issues. So I left and will keep looking around - Mellow Johnny's will ship for me if i want it. Might need to do some local rentals in VA on home trails