[Roger Cole]

I understand, but I rarely shoot in portrait orientation. So I don't value rotating backs very much. That's been a point I've made and I thought I was being clear, guess not.

We've been all around this but correct me if I'm wrong - you've been shooting with a 6x6 and you don't like to crop. So of course you aren't shooting portrait, you're shooting square.

Yes, you were clear about that. But the thread ceases being just about the OP. Other people can find views and opinions that might help them as well, and lots of them do shoot in portrait.