You aren't kidding about tearing up blades. But I found the trick with that stuff - Score it with a grinder and then break it.I had a momentary lapse of reason one time and did a DIY shower pan. (Of all the things to DIY, right?) I used that stuff behind the tile. Tough as nails, even chewed up concrete cutting wheels. But then I realized that if I scored the surface even just a tiny bit, I could lay it over a 2x4 and snap it like a gingerbread cookie. Nothin' to it.