Originally Posted by bigbulls

I personally like to use a 4 blade more than a two or three blade. The reason is that as the skin and muscle stretches a 4 blade actually leaves a round/square hole instead of a slice or triangle.

That is all nothing but old wives tails passed down from generation to generation. When you get the math figured out to actually get this to work in a 100% controlled laboratory environment let me know and I (mother nature) will change the wind direction so you can throw all of your work right out the window.