yeah thats a simple fix. take a round ball and flatten it out with a hammer, bend it around your flint, set it in the jaws and use a sharpe knife to cut the remaining lead off. I HATE leather, i tried going back to it but again, my flints kept coming loose after a few shots, they'd break off at the corners. The lead helped me out big time. If your flint still gets stuck under the frizzen a little, you need to knap the flint down a little. You can use the back of a sturdy pocket knife blade or of course a brass knapping hammer. Just take small even strikes across the front of the flint and try to get it even. Doesnt have to be perfect but it helps. You'll also notice more sparks with the flint wrapped in lead. I did in mine atleast. i think traditions take the 5/8"x3/4" flints. Im going to some white color flint i found, just have to take it to the grinder and make a flat holding area. Sparks like crazy with that stuff! If you need anymore help or need some pics to help you see what im talking about, just let me know.
Jon