I have a .54 cal TC flintlock with only 2 modifications. I use orange nail polish on the front sight and I use the allen key touch hole and it give me faster more reliable pan to charge ignition. I don't like to use anything but real flint but I'll admit I carry a spare which is a synthetic in my pouch. I carry a couple speed loads but my barrel is rifled all the way out so still need to use the ball starter. I use animal fat patches.
anyone else?