I'll admit I encountered a RDM that ripped from me on almost every boss in ToTF this morning. As soon as he did he dumped his aggro with Lucid, but not until after getting smacked in the face by an AA. On dungeon bosses I typically do a DAPS in Grit and then drop it. I was doing about 2900 DPS so I thought it was obvious that I wasn't in Grit, but he certainly didn't use Diversion. I'll admit I was shocked that a 300 potency combo finisher with nearly a 30x enmity modifier didn't hold (and it wasn't gear either as I am i323 and have a 330 weapon) but eventually I just decided to do an extra Gritless PS and things were okay. First and only time that's happened to me though, so idk what they were doing and I don't know jack about RDM at 70.