Wales was great, thanks - it was my second time there, so no surprises and the weather was kinder to us, which makes a huge difference for the bike course. The run was short, though, which I gather is a bit of an IM thing!
I'm not a shoulder expert, but I think you need to be careful when they start to hurt as it can spiral away quite easily. If it's just effort-related general ache which you feel toward the end of a swim and goes away by the next day, then that's probably OK. But if it gets worse, is there as soon as you get in the pool, or the symptoms affect daily activities, then It's worth getting it looked at.
I just picked my accomodation based on what looked simplest logistics-wise, as I have struggled a bit to get my head around the idea of a spit transition. It's not the cheapest option (through Nirvana), but I worry a lot about screwing that sort of thing up!
I'm going to get out on the bike later - knobbly tyres for dirty roads, but a simple one-way trip to son's sporting event, and hopefully a lift back afterwards. That should blow the cobwebs away
.