30% increase to Jump would be a 260 potency attack, no? Still would be weaker than Full Thrust. I never used it on Jump unless a target is at like 1-2% and I just finished a combo, and Power Surge and Life Surge are both up, i'll stack them both on jump just to get a big hit. Or while doing atma books, I would just one shot mobs with PS+LS Jump then run to the next spawn(in the case of spawns that were spread out far).