I've been slowly aquiring supplies and equipment. I'm new to blackpowder and just bought a pack of TC agate flints. I don't know what that means but it says "premium" on the package and they were a little more money, so they must be better, right? I got them at Walmart. I can't understand why anyone would buy the cheaper ones because they were only a dollar something more for a pack of three and they look so much more consistant and sharp.