It is the newest model, as it came to me on the last shipment from Wicked Edge USA, @ two weeks ago.I have two flat ground RAT folders, one leatherman and a scandinavian knife. All had the same problem. I did do a RAT 5 at work that I haven’t checked for this yet. I’ll check it out later. I did notice that the vise acted like a wood working vise, in that it was tough to get it to apply equal pressure on the blades where it was touching. Perhaps I have to work on getting it more evenly gripped by the vise. Still, I wonder if it is centered properly. I don’t see how that could be when the settings are different distances from each side of the vise. I’ll try to post pictures of what I mean as soon as I can figure out how to do that. Thanks!~F~
