I was looking into the DRT broadheads, and learned about a single bevel, and sharpened on both edges (double bevel). The single bevel broadhead is sharpened on one side, opposite of the other blade for maximum tissue damage as when it strikes, it turns more violent in the wound channel. When the broadhead is sharpened on both sides, it punches through its target or victim. I use two blade broadheads, always sharpened on both sides, as they are super easy to maintain....but I may give the single bevel a try. al