One thing to think about is that it's pretty easy to close and stitch a slice. It's easier for tissue to plug a slice. A hole from a 3 blade head or basically a hole from the 2 intersecting slices of a 4 blade is a bit more complex to plug.
Interestingly the wound from a single bevel head (Grizzly) will be a little more open than a straight slice reportedly due to the rotational torque or twisting of the head as it penetrates and stretches skin and tissue. But all heads when using helical fletching can possibly have rotational torque as they penetrate. That little bit of extra cut for the 2 blade still isn't close to equivalent to the hole left by a 3 or 4 blade.
Shooting hogs can teach you a lot about blood trails. Especially big boars. Their skin is very thick, elastic, and tough. It's sometimes almost impossible to find an entrance wound from a bullet. It's certainly not self sealing but it does close up to a degree. A hole in this case helps. But trying to make too big of a hole costs you in penetration.
It's all about trade offs. A three bladed head like a Snuffer or Wensel Woodsman will limit penetration but does a lot of cutting. A narrow single bevel head (Grizzly) will out penetrate pretty much any other head but doesn't create a hole as much as it makes a slice. It is very good however at busting through bone. A 2 blade with narrow bleeders will out penetrate a 3 blade and come very close to penetrating like a Grizzly. But it makes a hole. From what I have seen, holes don't close up as much and aren't plugged as easily. A head with multiple blades has more potential to do damage inside the animal. It also has the potential to put more blood on the ground if it exits. There are strengths and weaknesses for each type. Most of you guys know my choice. It may not be the best choice for you. This is all just food for thought. You have to choose the right one for your circumstances.
Interestingly the wound from a single bevel head (Grizzly) will be a little more open than a straight slice reportedly due to the rotational torque or twisting of the head as it penetrates and stretches skin and tissue. But all heads when using helical fletching can possibly have rotational torque as they penetrate. That little bit of extra cut for the 2 blade still isn't close to equivalent to the hole left by a 3 or 4 blade.
Shooting hogs can teach you a lot about blood trails. Especially big boars. Their skin is very thick, elastic, and tough. It's sometimes almost impossible to find an entrance wound from a bullet. It's certainly not self sealing but it does close up to a degree. A hole in this case helps. But trying to make too big of a hole costs you in penetration.
It's all about trade offs. A three bladed head like a Snuffer or Wensel Woodsman will limit penetration but does a lot of cutting. A narrow single bevel head (Grizzly) will out penetrate pretty much any other head but doesn't create a hole as much as it makes a slice. It is very good however at busting through bone. A 2 blade with narrow bleeders will out penetrate a 3 blade and come very close to penetrating like a Grizzly. But it makes a hole. From what I have seen, holes don't close up as much and aren't plugged as easily. A head with multiple blades has more potential to do damage inside the animal. It also has the potential to put more blood on the ground if it exits. There are strengths and weaknesses for each type. Most of you guys know my choice. It may not be the best choice for you. This is all just food for thought. You have to choose the right one for your circumstances.
