Not sure what one has to do with the other. I do not put gun barrels in my mouth though.
I do follow the rules of those who are hosting and event or organization, even if I disagree. If I have an issue with the rules I do not participate or even join in the first place. I do not argue, I do not whine, I do not get defiant. Therefore I do not get kicked out or a reputation as a jerk. .
IF you want to shoot with the big boy shooters in the ML game you need to use a blow tube. It is what it is.
On these new rifles with a reduce diameter section back there at the breech, is that a location for build up to create an ember?
Yes, it could be. That is why I think requiring shooters to swab between shots is silly. IF there is an ember then in order to quench it by swabbing you have to flood the chambered breech, vent liner and/or drum. IF you do that the rifle must be cleaned and dried before the next shot. Shooters that use excessively wet patches have trouble with reliability. That creates a different hazard, a gun that has misfired.