The below changes drop the weight to 6.55kg without the Garmin and lights. It's only 6.75kg 'ready to ride' now too:
• Top cap changed from metal Cinelli with steel bolt to Carbon-Ti alu bolt with carbon plate
• Bottle cages changed from Arundel Mandibles to Carbonworks v2.1 (probably not much difference)
• Light mount changed from Knog PWR to 'Tidy Light' for Exposure Trace under K-Edge Garmin mount (probably net added weight as there was previously no computer on the bike, but 'ready to ride' weight is probably less with the Exposure)
• Skewers changed from stock Campag to Extralite Streeters (probably the biggest change)
I also stopped the Praxis BB adapter creaking, but I have a C-Bear replacement on the way anyway.
I'm contemplating a switch to Lightning v2 cranks for weight savings on par with THM Clavicula SE at half the cost. A change of wheels would easily drop another 200-400g (e.g. 49mm Caden 'Decadence' tubs would save 300g *and* be deeper), but I like the WTOs so I'm reluctant to do that.
Also found some bottles that match the logo perfectly!: