Germ,

My stinger went right thru a rib bone and split it down the center and nothing happened to it. I also put one thru my fence in the back yard and it split the fence in two and hit a concrete block and only dulled the tip. I have also put one thru the bottom of the spine of a deer. The bleeder blade did bust apart but that can be expected with that kind of a shot.

Atlasman,

I thought the same things about the stingers as you did. However I jsut tried the wacems which has a cut oncontact tip that has to be resharpened but it also comes with replaceable blades. The blades on these things were just as sharp as the stingers. Did I mention they were also even more accurate than my stingers (it could have just been me). I can shoot the stingers and Wacems from my bow and both will hit very close to each other.