Thanks for the clarification. I just bought 20 small square flints, so I guess I am OK for the moment, but maybe I will try your 'fix' in the near future. The lock performs well otherwise, I just had to go to full cock to close the frizzen with the original flint in it--not safe for hunting, but at the range, with care, it worked OK. It is a fast little lock and I think with the proper flint might work even better? as it will strike the frizzen lower on its face. With the long flint it almost touched the frizzen at full cock and strikes it high.