Hi, Thanks for the comments and advice.
I'll check the heater controls. I've not yet experimented with the wipers 🙈
I think you are right about the throttlebodies, I do love the character these give the car, and the engine is very docile and tractable around town.
I had a Caterham Academy and Roadsport race car a few years back, and more recently a Caterham CDX (K series super sport) which I sold late last year to help fund and make space for the Morgan.