Every thing I have gotten from Scott so far has been in A2. My first gossman was a PSK from a run scott did in A2. It was basically my first custom. I was real happy with its preformance so since then everything else I have ordered I got in A2. Back in christmas I bought a unused second hand PSK SR in O1. I gifted it to my cousin for christmas. But before that I put a scarry edge on it rather easily. With that being said I have just ordered a kephart in 0-1 to give it a try. Reason I did is the O-1 seemes to me to sharpen easier but I have had no real problem with A-2 either. I just wanted to hear some other takes and opinions on Scotts Knives in these steels or others. Trying to learn a little more.