Well, I have it pretty much dialed in to my liking now, new waxed KMC chain, nos Ultegra 12-21t 9 speed cassette, nos 3TTT handlebar (narrower at 38cm than the original, and traditional rather than anatomical drops), new bar tape, ‘old style’ pedals with toe straps, Michelin Power TT tires (25mm rear, 23mm front; inflated, the rear measures 26.5mm which is a bit too close for comfort in the front fork, and the front measures 23.0mm, internal width of both rims is 13.5mm), RideNow 36g TPU tubes.
I must say, I am SUPER pleased at how well and fast this bike rides!!