Wondering if others use the same seat/bar/pedals across all their bikes? Since these are the points of contact, it would provide a constant and eliminate some variables when evaluating a bike. I do this with all my bikes.
When I was still learning about fit, I almost got rid of what became one of my favorite bikes because I hadn't found a seat/bar combo that worked for me. It took me several years to get things figured out (pre-internet) and I even tried to sell the bike at one point.