I've been wondering the same thing. >.<; I want to outfit Blizz with my cybertech skills, but I don't have the mods with defense or absorption. Why leave out an entire role from a crew skill? I have level 400 cybertech btw, and I have done a lot of reverse engineering and never seen tank stats appear on Mods. However, I've seen defense show up on armorings that were not the tank ones. Real useful there.