hmmm sounds like you may have found a bug, even with CiA2, Invig2, and full thrust you will not get 3k tp with that one hit, Chaos thrust, Twisting Vice, and Moonrise wouldn't have anything to do with it as none of those abilities increase the TP you receive, CT will use up all your TP, TV will wipe your targets TP, and MR will decrease the TP gain of your target, so none of them enhance your TP gaining ability.