Thanks again. I still have to choose between the two models. For some reason this year the inventory in my local Trek bike has been very low (despite being called "superstore"). They used to have every model in every size all the time. Now this is the first time I have had to wait for them to get them. One even wanted me to pay beforehand! The only WSD shift they have in all the local stores is the one I tried. I think they have some at the warehouse. I actually feel weird about asking them to bring me yet another bike to the store to try, but I really want to try the Shift 2 in case I happened to like it. However I don't like the idea of a suspension that doesn't lock. I'd love it if they had a shift with 21 speeds but no suspension.