SAK steel does better than many people think, but its also a multitool which steel doesnt matter as much anyways. I dont like soft steel because they flatten, completely eliminating cutting, when a harder steel microchips it still cuts. Of course theres alot of variability that determines these things, but as an example I was using an old imperial rhode island stockman one day, I cut a zip tie and it completely flattened a portion of the edge, if I used the zt 0561 that was in my pocket instead it would have been unharmed because elmax is way stronger than the soft mystery carbon steel of the imperial. Also the edge flatttening on softer steels requires more material removal when you repair it to a clean apex, I just touch up the edges on the harder and stronger steels before they get too far gone. Just my 2 cents, im no knife scientist or anything.