Here’s my two cents on percussion conversions. If your going to make a conversion that virtually eliminates all the “flintness” of the lock why not just build a percussion instead? I really have a thing for field conversions, with cleverly designed work arounds that allowed someone on the frontier with little or no tools to get the job done. Small pieces of brass rod, or copper wire, can be hammered in to fill the extra holes, and still scream “I was once flint”. And the flash fence, Why in the world would you cut that off? I love converting flint cocks to percussion hammers too, the cruder the better.
I’ve had quite a bit of practice thanks to so many of the import replica builders being pretty much unable to build a good looking functional flintlock. That means there’s lots of raw material for cap conversions.
Hungry Horse