I do not own a 532. I do have the 531 which is around 3 1/2", thin and a dressy knife. I do like the mid-lock. But those models have no belly and remind me of a broad head on a hunting arrow. Haa, I know guys like them. A mystery.? Whereas the Duke has enough belly to give eye appeal and only being 3" and thin. Thus, I would buy and carry the 500. One may with seaching find a 532 with S30V steel. As Buck did that model with up grade steel. DM