So... I have the special edition zombie ProVari (ZombVari, if you will), and I ordered a couple beauty rings because I ordered a 91% and a kayfun clone and I'd like them to sit flush. I ordered one from Loki Labs and the other is the kayfun PV Cone from vaperev, and I was trying them out and it seems that they sit a little too high and prevent my Igo-L (not that I bought it for that, I just don't have either of the RBAs that I ordered anywhere near shipping yet) from threading all the way in, rendering it non-functional. I just want to make sure it's going to function as intended when my tanks arrive. I am captain paranoid!