Thanks for your reply, it was perfect timing!

Unfortunately I don't have a clear container big enough to hold it so it's in a mixing bowl. But tonight there was no mistaking that it was ready - between 1 & 7:30 it had grown enormously and was so fluffy, bubbles all the way through I was wondering how long I'd need to let it rise to be able to bake it tomorrow, and was thinking a couple of hours lol. So yeah, perfect timing for your post to come through lol.

I reckon I'll go to feeding only every 24 hours, rather than 12 cos we just can't eat all the bread that would make, so it's good to know yours worked that way.

I've now got three half-loaves rising, and can't wait to bake them tomorrow!! Fingers crossed they turn out ok, the plan is to take at least one to the parents' place to have with dinner for Dad's birthday.

Can't wait, thanks for your help!