Floridians are nuts! :
That isn't entirely true, some of us are legumes! Anywho, yep slow is the way to go, abrade, abrade. I still can't get a long point, or knife blade, or atlatle point, or wintu style, without breaking off the other barb. I make a nice gravel bed though. I did finally manage to make an atlatle point out of some Glass Butte Obsdian, but it is the first. I still am trying to get a bigger arrow Head, and to thin them down.
Hang in there, it just takes time, and learning from your mistakes. I have one piece of nice coral left, that I am leaving alone till I can knapp much better than I am at this point.
But I learned, from my mistakes, so I guess I am progressing. But just not at the pace I want to. If you can find someone who is a knapper, get with them. It is so much easier when you have an experienced knapper to watch, and ask questions, and get pointers. I wish I could percussion flake. I did make a little progress, with the obsidian, I have, but not enough to do what I want. So keep at it, and your flakes look good. Oh did the kit contain any band aids?
Wayne