RE: Magnus Stinger or BuzzCut?
I doubt they would say otherwise since they want to sell as many as possible. Having been a paramedic in my former life, I saw a lot of farm injuries here in the midwest. I was always amazed at how little blood was lost when a limb was ripped from someone by a live PTO shaft or a person was cut by a chainsaw, etc. in comparison to someone being cut by a knife, glass, or something similar. I asked the emergency room doctor about this one day and he explained it as Wingbone described. He also said that major vessels and vains constrict to slow blood flow when traumatized, much like when they are ripped. Slicing does not have that same effect.
Serrated blades are snake oil, plain and simple. They are certainly no better than a sharp plain edge, plus they are far harder to sharpen.