Why would anyone want a chiseled edge knife, unless they are going to cut sushi? I had been quite interested in CRKT's M16/M21 models for features, size and price, and when I went to actually handle them I was disappointed to see that almost all models had a chiseled edge that was not advertised in their catalogue. Is there a benefit to this cut that I'm not aware of? Are tantos always chiseled? Thanks.