I made a target in the spring and have been using a single bit ace. I'd like to get an old double bit to use. I'm wondering what's a good weight to look for. I've been looking at flea markets but haven't found many. I don't really want to spend too much on one for a hobby. I'd like to try a completion or two. Does anyone know of any around Pennsylvania? I know Cherry Sorings State Park has one but I missed it.