This whole topic is frustrating for me. I have a Specialized Tricross Comp and I like it but I don't really know whether it is the ideal geometry/setup for me. I just can't get enough time on other bikes to get a real feel for what works. A test ride from a bike shop doesn't give me enough time on bike to know whether I will really like it and rentals seem to be limited to a model or two - no opportunity to get a variety of bike for long rides. I always had the same problem with skis.