Took the opportunity of MrsH being away to give the trice a service. The transmission has been giving me a bit of grief, but it's not been properly looked at (other than cleaning the chain and a bit of a tweak to the gears) since I got it, and done a lot of miles on the trainer plus some on the road and track.
There's an old wooden garden table that has been waiting to go to the dump, one of the ones that has a top that's about six inches wide, then two drop down leaves hinged off that. I realised that if I took the top and leaves off it, then swinging out the legs out that would have supported the leaves makes it stable, and the front wheels will sit nicely in the gap between the wooden rails that would have been attached to the top. Put the rear wheel on a workmate (with a small stand if I wanted the rear wheel to spin) and I could work on it all at a comfortable height.
So, stripped it down and cleaned the hard to get to places. Checked and regreased the idler bearing. Replaced the cassette. Cleaned both mechs. Replaced all three chainrings, going up slightly (from 52/42/28 to 55/44/30), then put on three new chains. Spent a bit of time making sure they are all set up properly. Much better.