Jesse, I've used a lot of heated Ft.Payne, and it's good stuff. I think the deal is that the light-colored Ft. Payne will heat-treat good, but the dark-colored stuff doesn't. I've got a couple spalls of Dover from Pappy's farm that we heated in a fire pit at Pat's last month, haven't tried chipping it yet, but I'm anxious to see how it turned out. It's the greenish stuff with the bullseye pattern.