I was looking at the Summit Sunrise panorama again to see if I could do a better job of it. You see, I realised that hugin has the option of using the Panotools enfuse engine for making the blends. It makes HDR images as well although I haven’t tried it for that… yet.
The nice thing about hugin is that it generates both files for you, the normal blend and the enfused one. That allows you to compare. This one above is the enfused one and I think it does a much better job. It’s matched and dealt with the lighting changes across the field much better. No (overtly obvious) joins!
I’m even more pleased with this result.