Did a couple of prints with the filament cut to about the length the print would use and not being distributed from the spool. Layer thickness 0.16 mm and print speed lowered to 40 mm/s. Everything looked great then I got cocky and raised the speed to 60 mm/s, thicker layer 0.3 mm and put the filament spool back up. Then the print became a bit wobbly again. Maybe the problem with the filament guidance tube wasn't the only one.