It looked like one of your attempts to edit Module:SkillTable came kinda close. While it did drop the mod arrows for the Mod A Skills, it did recognize the Mod E skills separately from the base Skills. I think it just needed to be put in its own search to avoid adding "/Mod" to the link. Doing this might also prevent it from messing up the mod arrows on the Mod A Skills as well, but I don't know enough about this stuff to say that for sure.