Just a note here Rick, Rob mentioned a short while back that some of the newer grands had kinda shoddy 510's in them. I had the same problem putting a CH Odin on one of my grands not threading down flush and not firing. I very carefully re-tapped the 510 in it and the atty them screwed all the way down and fired finally. I would suggest sending it in to Rob or Tom to have it done, because it is very easy to crush the wafer thin washer in the 510...
How did you re tap it? What size tap did you use if you don't mind me asking? I had both of my Odins working on my Reo before I sent one to rudedog. I bought a SS one back in October and then a black one last month. I really want to understand what the difference is between these two Odins; one screws on a little more snuggly than the other, on my Reo, but it will not work at all on rudedogs Reo. I'll have to send RD some consulation prizes for all the hassle. He;s sending it back to me, so I can figure it out. So sorry rudedog, I'll make it good, and then some.