Thank you. the Mister has just got home and checked everything over, so we'll be back on the bike and trailer tomorrow a little bit wiser, a little bit further out from the kerb and a little bit slower when going over it. A loaded trailer helps a lot in terms of stability, it's definitely more flighty without Small Girl in it.

I forgot to say, I spent a good hour reattaching the spare hitch point to the Marin last weekend and testing it and it's fine now. The Spesh is easier for getting the trailer up the hills but the Marin has better visibility from its more upright riding position, and also rolls a bit faster as it has more road-friendly tyres.