Not to stir up a hornet's nest, but there's recently been a lot of discussion about the "stiffness" of 753 tubing on the CR list (and I know Lynn's a lister) and the consensus was that 753 is actually a LESS stiff tube compared to 531 (all things being equal). Several CRers actually said 753 was very whippy, at least that's how I understood it giving the digest my usual quick scan. Anyhow, the geometry is going to make more difference, and the 753 is surely a more sporting bike and will ride like one...so the question is how much comfort and/or load-carrying is important to you? One thought: I recently encountered a stem where a cone-type expander had been so over-tightened it bulged the steering column and remained trapped in the bulge...very difficult to remove! I wonder if 753 used a thinner gauge steerer to match the thin walls of the tubeset?? If so, I'd watch out for possible bulging in addition to the usual corrosion/rust/cold-welding, especially if the stem bolt seems over-tight.