I bought one for myself and one for my helper at the NECA show in Chicago last month. The guy who invented it was demonstrating it, and it looked real good. It takes a little getting used to, but I think it is a real handy tool. My helper compared it to the Swanson speed square that carpenters use. I think someday it may be as common for us to carry a Marksman as it is to carry Kleins. Just my opinion.
WW