Jerry, you mentioned tires in one of your posts, so you might already be on board with this, but that is one way a bike can get sold short in comparison to another if lower quality tires are used. The minor tweaks in fit will also make a difference as you’ve found. Some bikes, though, don’t ride as nicely as others, even though still good. Still, though, variety is the spice of life and it’s nice IMO to ride a merely good bike as a diversion from the monotony of always riding the same better one.
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N = '96 Colnago C40, '04 Wilier Alpe D'Huez, '10 Colnago EPS, '85 Merckx Pro, '89 Merckx Century, '86 Tommasini Professional, '04 Teschner Aero FX Pro, '05 Alan Carbon Cross, '86 De Rosa Professional, '95 Gios Compact Pro, '95 Carrera Zeus, ‘81 Masi Gran Criterium, ‘81 Merckx Pro, ‘89 Cinelli Supercorsa, ‘83 Bianchi Specialissima, ‘VO Randonneur, Ritchey Breakaway Steel, Rivendell Rambouillet, Heron Randonneur, ‘92 Ciöcc Columbus EL