I had some similar problems with my V1 Odys. Here's what I figured out I was doing. The threads on the ceramic housing are so fine that the gaps for ceramic gives enough space to have the nut or mouth piece "cross-threaded" but still thread together smoothly. If either one is like this you will get the leaking you mention. I pay close attention when assembling, comparing both pieces to ceramic channel as they are being threaded on. Both should be perpendicular to the channel. If they are off by one thread you can see it if you are looking for it. It will cause a gap between base and nut or nut and mouth piece. At first I thought the gap was from the NR wire under the nut, but it turned out not to be the case. Since I've started checking for this I haven't had a single leak. Have a close look at yours and hopefully this will solve your problem.