I use a Muzzy three blade broadhead. I think three blades make the best blood trail. If you think about it, three blades cutting will always assure that the wound is wide open like a hole instead of a cut. Two or four blades the wound can close up a bit when the animal moves and pulls the skin tight because the blades are straight across from each other. I personaly like to see a lot of blood on the ground. Never the less any broadhead through the boiler room will bring an animal down very fast.