Been searching the forum and am wondering - there are a number of posts that discuss using teflon tape on the breech plug threads. Had never considered having a problem with my Traditions Pursuit LT but it got me wondering. When I remove the plug at home for cleaning I have about the last 5 or 6 threads on the plug that have evidence of fouling. Now I wonder if this is "not normal". Should the plug seal be such that there is no evidence of fouling on the breech plug threads? I noticed when switching recently to Triple 7 pellets, that when spit patch cleaning between shots, as I near the area where the pellets/bullet were, it takes some extra effortto get the cleaning patch beyond a certain point, and then sometimes quite an effort to pull it back toward the muzzle. This seems to be what folks describe as a crud ring. I am wondering - if the seal between plug and barrel is not what it should be, would this account for, perhaps partially,the ring to develop?