thanks all.
They're good tyres. Seem to roll well, comfy (60psi rear, 50 front) and are reasonably light. They were incredibly hard to fit - initially tried to mount the first one on a Stan's Crest but after wasting nearly an hour, a brand new tube and two tyre levers I had to fit them to a standard clincher rim and leave inflated to 120 psi for a week before re-fitting it to the Stan's. I couldn't get the front one onto a Crest at all. I'm dreading getting a puncture.
i love the attention to detail; i'd like to see more bikes built to this standard
However, it's not perfect: cheap ugly cranks with no dustcaps, I don't like the drop on the bars, the chain is one link too long, the indexing isn't quite right on the smaller cogs, there's no inline adjuster on the gear cable, the rear brake chirps a bit, the brake discs are slightly warped, the spoke nipples don't match (black on the front, brass on the back) and there's 20mm of spacers
above the stem.