In the meantime I stitched some of the worst showing M1 upper rail lenses like D3 shaved 10.5 and D7000 Sigma8mm/f3.5.
Your question was a good one. It is always worth the time to listen to your comments. I personally have been surprised of the stitching result:
The upper rail does not show in the stitch, I used PTGuiPro. I had contact about this with Nick as well, and it seems that the rail does not show when it shows "inside the overlap area". Might be in cases we shoot "extreme", 3 shots instead of 4 with a lens then can do both and overlap decreases below 20% for example.
I will stay on line with this project. I do not believe this might be a special software solution, 25% overlap should be the same in all stitching software?
@John, what do you think? Do we have to test other software?
So right now, I will take my time to test and stitch the Nikon Branch with bodies and lenses I have available and let you see this later on. Will take some time.