I watched the Pedersoli video on flintlock maintenance.
They removed the vent liner for cleaning.
Just saying....
Since this is flints, I'll just make a quick comment, but I will remove the nipple of a cap gun and clean it every time.
Flushing a patent breech for a good hi flow cleaning works great,
Maybe that's why TOTW and others carry a special nipple with a rubber gasket and tube kit for flushing.... that works great for a spic and span breech.
The Allen keyed vent liners showed up yesterday.
I will change the vent liner out at the next cleaning on the Frontier(s)
BTW, the Frontiers appear to have a small flash channel drilled out the bottom of the plug into the drill hole for the liner, like a vertical patent breech that runs from the main charge to the area directly underneath the vent.
From the initial look, it would seem to be one of those problem areas that could cause ignition issues, but after several hundred balls out of the new .54, not a single fail or even a slow light off has occurred. That MIGHT be because I keep it clean.