As far as the sharpening choil goes , the reason I'm not putting one on this knife is because when I poke it into the bag of chicken feed to slice it open I don't want the bag catching in the choil. And the reason I don't want to sharpen the blade all the way across is because the heel of the blade doesn't stick out far enough below the handle . The heel of the blade is about halfway in the middle of my finger! And I think I'm going to stick with the birds beak at the butt of the handle in case I need to pull on the knife,as in the case of cutting leather or marking wood! And I agree about a little bit of belly or rocker in the blade. I originally drew it that way and then I thought it looked better all straight and square like that... Oh and the lanyard hole, I always put lanyard holes because they're one of my pins!