Quick update. Put the girl on a tiny post-holiday diet (better her than me), and have been playing around with my fit. Pretty happy so far, but still a work in progress. Anyway, this week's swapped parts are:
Look Keo Carbon pedals (228g pair) gone; Speedplay Zeros with Ward ti spindles in (158g pair) = -70g (not including cleat diffential, though)
Thomson Masterpiece setback (192g) out; zero-setback 3T Doric (sanded/clearcoated) (182g) in = -10g
Zipp 145 stem (147g) out for a 100mm Deda Zero 100 SC (117g) = -30g
Previously I switched out the surprisingly heavy Zipp top cap for a Fairwheel Bikes "shootout" version (I'm the guy whose heart is exploding), swapped the stock campy RD pulley wheels for some KCNC ceramics, and lost the heavy Fuji seatpost collar for a Soul Kozak, for a combined improvement of about another 35g or so.
Also lost about 80g in helmet weight, and mounted a Garmin Edge 500 and upgraded my PT hub to ANT+, so now I no longer am running a silly cockpit with Garmin Edge 305 + powertap LYC + the Garmin cadence unit on the chainstay for further unknown amounts of unsprung weight savings. Also dropped the saddle bag while I was at it as a matter of principle. After these little touches I'm still slow as I ever was, but that's not the point. Wait, what was the point again?
Future plans: new bar tape/saddle combo (black?). New shoes (Bonts?) - my current Mavics weigh ~630g for the pair and hurt my feet. Also could cut about 6cm off the seatpost and 1-2cm off the steerer tube if I wished. We'll see.