Small bug report, When playing with K2, the Fast and Express belts do not get the increased distance. The standard braidy belt recipe also outputs a normal underground belt in K2.
Thank you for reporting the issues, very much appreciated.
I just uploaded a new version which should resolve the length issue for the fast and express braidy belts with K2.
However, I am unable to replicate the recipe issue. I tested with both crafting by hand and via an assembling machine, for all of the belts, K2 included.