Got a new knife a while back, from its performance so far I can highly recommend it. It is a RAT RC-5 SERE. Couple of observations from a my position, take it or leave it. I dont know the difference between the number xx40 steel and the xx40.5 steel, a hollow edge from a lawn edger, a ...well you get the picture. But I do know what does and doesnt work. It is a sharpened lawn mower blade, so no issues with tip failure or ability to do heavy work/ chopping. It is actually a bit too heavy for a 5in blade to carry on a first line. But it is worth it as a back-up or a second heavier knife in a BOB if you carry a folder. Im going to go with the RC-4 in kydex as my first line based on the RC-5 experience. I dont think you could go wrong with any true RAT cutlery (not the Ontario name buy). JD might even like 'em (BTW thanks for talking me outta the Strider many months ago brother). Price is pretty good too, under 100 for the RC-4. Update those Christmas wish lists guys.