Well, I’m going to admit defeat for the moment – I haven’t yet managed to get a decent rapid bake cinnamon and raisin bread. I’ve added everything in one go, and got mashed up raisin bits due to excessive mixing; I’ve added raisins when I thought the mixing was nearly over and had all of the fruit fall to the bottom of the loaf, which meant they got the bulk of the heat and ended up crispy (a pet hate).
I think the problem is the rapid bake dives straight in with vigourous mixing, and doesn’t do enough gentle folding later on to allow the fruit to be distributed evenly. I could probably pause the bake and add the fruit in manually, but that sort of removes the point of having the machine bake it for me ! Still, the solution is to use the timer: waking to the smell of cinnamon is worth the wait.