AMEN! This is what I use. It works flawlessly.
https://www.trackofthewolf.com/Categories/PartDetail.aspx/69/1/FLASK-BAG
I know it's out of stock there, but other retailers sell it.
It's better if the pins are somewhat inset from the stock than level with the stock. I would hazard a guess that this would be clue to remove more wood!!
Hey @Thomas.bill92
@centershot has it right. I would only add an over shot card over the powder before the cornmeal for a better gas seal. Nothing bad will happen. I shoot .320" balls from a .63 (not a typo) all the time with that recipe.
You just don't get it do you? Multiple members have told you the marks on your frizzen are normal. The flint HAS to shave metal from the frizzen in order for sparks to happen. Yet you want to 'improve' upon that. I could show you one of my Pedersoli frizzens that has had over 2000 shots on it...