Workflow was Rawtherapee for basic/usual adjustments to the batch of shots and to make downsized tif's that would stitch faster. Tried Hugin for kicks (first time in a long time) but it was a mess (as it usually is when I use Hugin.. Always hoping I'll figure out how to use Hugin better but it never happens). Switched over to M-ICE and it worked well as usual, but with the usual sharpness loss in the resulting image that I always notice when using that app. Then into Gimp just to use Nik-Sfx from within.

remember it's effective 18mm fov.. also feels lazier because with the 4:3 ratio as much motivation to switch to portrait orientation

Crikey, my mind's struggling a bit with this one - six horizontals @ 9mm. Very well stitched - rawtherapee? and all those lines are inviting me deeper into the image.