Michael, I'd say this was shot in low light conditions. Can you do another test in better light conditions? Always use protune and ISO lock at 400 ISO; GoPros are garbage when going at and over 1600 imho
do your best to understand what it takes to get a proper stitching in various situations, so that when time comes that you don't have time to experiment and you need to bring results home you're already good to go (:
yep am on it btw what autopano viddeo settings do you use for best quality output? I use 4K UHDTV but do not see much difference to e.g. the cinema version of it?
I just use a preset with higher bitrate; everything else shouldn't matter afaik, the pre loaded settings are just names for resolutions & bitrates, they add nothing else