I've not used the tape and likely will not unless I see that there is a substantial gain in performance and function other than cleanup. I think there may be a greater opportunity to have the tape pushed from between threads.

Basically any high temperature anti-seize lube should work fine.

I've used the T/C , CVA and Knight natural lubes with good results.

I'm presently using Birchwood/Casey Choke tube lube. I got a good deal and four tubes of the stuff at a recent gun show. Seems to work very well.

As mentioned, loosen the breech plug or nipple ever 6-10 shots to ensure that a nothing is seizing up. Clean and relube after 30 or so shots.