Yah, but they all took a lot longer to get there than you have, probably due to your diligent application of the art of Google-Fu to all your work!
A very small tube of Permatex Anti Seize from the auto parts store is perfect for those choke tubes, there's enough in there to last a life time, and it has both high temp and high pressure resistance.
Or if you have any plain (not flavored) Philips Milk of Magnesia (MoM) in the house, just coat the threads with that, it is extremely temp resistant and pressure resistant too, and doesn't make nearly as much of a mess as the silver anti seize does. Once the MoM dries on the choke tubes, it really doesn't rub off on hands and clothes. The anti seize will get on anything it touches.
Boeing actually requires MoM as the anti seize of choice for assembling the parts of the turbines on its jet engines, that's how well it works.