Tom, you are correct. Jerry bought a bunch of 5160 at auction and used it to let some of the guys in the shop practice grinding. Many of the blanks he had cut were bought by Justin Gingrich--legend is Justin bought all 700--and those blanks started the Ranger RD series. I own one of the original RD9s made from a Busse blank. It is one of the blades I will probably be buried with. Tom, unless I'm very much mistaken, I believe you have one too Justin did a fantastic job with the heat treat. If there were still some of those blanks kicking around, Dan would sure be able to make one heckuva blade! If that's what we're talking, it's gonna be a nice big chopper