They're just TC's current production factory locks...nothing tuned.
No, I haven't been rotating these flints...that's something I learned to do with flints having that 'humpback' shape...the slope risesup so rapidily that the edge becomes thick very quickly as it wears down shorter...with flints that are thin and flat,their edge stays thin and sharp much, much longer.

I intentionally made myself use up allmy humpback shapes at the range and have finally finishedthem all up during the past couple years...nothing but thin flat razor sharp ones left, and have been using them all this year...most of them go through the whole session without knapping or with only one knapping...and most of them survive all the way through a second 50 shot sessionfor 100 shots total, and still going strong...usually have toknapp it a couple timesduring the second 50 shot session.

Going after Flintlock squirels in October and deer in November...won't be long now