Ive had 3 para2's all in s30v, and i couldn't notice a difference between cutting and corrosion resistance in any of them. They never got rusty on me though. 1 was satin, 1 was dlc coated, and 1 was a trade that had a different coating on it. Didnt know what that coating was, but it was the better one in my opinion. I used it the most and it never did show signs of wear what so ever. The previous owner said he duracoated the scales on it, so i would assume that was on the blade as well.