A simple test to see what kind of cutting you will get for a cut on contact broadhead and a 3-4 blade broadhead. Take a thick piece of leather and push the cut on contact broadhead thru, i did this with a Zwickey and it slices thru with out much effort, now try it with a 3-4 blade broadhead----------good luck, and its a good idea to wear some thick pair of gloves just in case you slip in trying to get that broadhead thru the leather, this will give you a good idea in how much energy you are losing upon impact of the broadhead getting thru the hide of the animal.
Cut on contact broadhead gets my vote!