Rage 2-blade:
Cutting diameter = 2"
Cutting surface= 2 5/16" including tip blade
This means you are causing 2 5/16" cutting damage within a 2" area. This means a very large hole and massive damage.
Any 4-blade 1" fixed
Cutting diameter = 1"
Cutting surface = 2"
This means you are causing 2" of cutting damage within a 1" area. As you can see all the damage is being done in a fairly small area with a fairly small hole.
How do you figure that tip offers more cutting surface on a rage or snyper but not on a fixed head
as it pertains to how much tissue damage is being caused in the animal? Two inches is two inches regardless of what kind of tip is on the head.
Cutting surface refers to the total length of the actual sharpened part of the blades added together and indicates how easily a broadhead will cut through bone and tissue. The idea is that a broadhead with more cutting surface to diameter (3 to 1)will penetrate better due to the blades being long and slicing instead of chopping their way through an animal.
I wanted to finish the by stating that a 2" cutting diameter 2-blade and a 1" to 1 1/4" fixed will do about the same amount of damage (cutting surface) but the 2-blade damage will be in a much larger area compared to the fixed blade heads.
Again I have to ask how you figure this is possible. Area is area. Regardless if it is shaped like a square or long single rectangularslice. A 1" four blade will create exactly the same amount of tissue damage as a 2" two blade and 1.25" fixed 4 blade head will do exactly 20% more damage given equal depth in the animal.