In case anyone wants to fix this, just add these 3 lines to item.lua in the longer-upipes zip file:
after line 43:
ptg255.minable.result = "longer-upipes-ptg255"
after line 23:
ptg100.minable.result = "longer-upipes-ptg100"
after line 3:
ptg50.minable.result = "longer-upipes-ptg50"
I listed them backwards so the line numbers wouldn't change based on the new lines.
