I love 52100, but imo it just isn't a good choice for a constant humid environment, such as a pocket. I don't even think it takes a patina that well. Mine seem to resist corrosion as much as carbon steel can resist, then finally gives in to no kidding rust, skipping patina. That isn't very scientific i know. My fixed blade hunter is still holding up well after a dozen or more years, and it cuts similar to any cpm steel I've used. The edge just holds up well. But I'd hate to carry it around in my pocket in South East TX.