I like a more vertical grip for my arthritic hands. Compared the K2 to the B5 my take for the angle the B5 at the end of the grip comes forward about 1/8" stronger than the K2. K2 has storage for small things, B5 doesn't. But B5 is wider IMO and the stippling is very tacky without the rubber of the K2+ which in high temps could be problematic. I likey.