I can't say I ever got it "perfect" Mid-season on my Fuji Pro was pretty close. That bike fit and with a few thousand miles on it, became part of me. (Very, very quick steering and short enough reach that I had to bend my elbows to right angles to get my back horizontal.) I was young enough and fit enough to do that for hours.) I raced it on really light wheels and 250 or 220 gm silks.

In a lot of ways my current "good bike", my ti TiCycles is there but I did not spend money to make it especially light and it has never seen light wheels and sewups. My TiCycles fix gear is lighter and feels like a pure race bike* but fix gear uphill dancing happens at a waltz pace, not a foxtrot.

* with sewups, that bike would be a high end 1980s road race bike in a fictional word where freewheels never existed. I get reminded every time I ride it. (It's just a blast!)

Edit: my pic is that fix gear going up a 14% grade. A very slow waltz.

Ben