Decided to take 1.6mm (ie four brick courses) off the bottom. I think it looks better. Just trying to decide whether to take another couple of courses off at the top.
I know they say, "measure twice and cut once", but I decided to make the water tower while I was away in France. I had just enough foamboard with me to make it and so pressed on, guessing the dimensions. In an ideal world, I could have made a cereal cardboard mock-up first, but the PLR is a bit like Topsy ..... things get added as the fancy takes me - there is no master-plan.
Rik