Thanks, everyone.
I've been enjoying the warm weather, and doing more miles than expected this week. Really enjoying the car, although the near side wing mirror is impossible to position and I'd forgotten what it felt like to hit potholes in a Morgan! South Glos roads are appalling as well, so I'm learning to leave lots of space behind cars to give me time for avoiding action, and using the tongue to blast past cars from a lot further back than in the Caterham.
Very satisfying!