In general, any self-defense knife I would be all in for the Byrd line. Reason being is I don't care that it will be 8Cr13MoV, if I may never use it, and it is a lot easier to spend ~$30 than ~$100 on a knife I will maybe never use. That is the reason I have not bought a self-defense knife like the Yojimbo, P'kal, or Civilian/Matriarch.