In September I used a Montec G5 (125 grain) which completely penetrated a broadside bull at around 35 yards albeit the shot was somewhat low not hitting the thickest part of the rib cage. This was coming from a 70# Darton Maverick generating around 70 pounds of kinetic energy.

The same setup and head harvested a decent buck that was shot at a quartering away angle. Although a complete passthrough was not acheived due to the arrow staying in the neck of the deer (both sides of the arrow were sticking out) it certainly wasn't the fault of the broad head. A blind man could have followed the blood trail. Of course the location of the hit had everything to do with that. I don't think there was an ounce of blood left in that animal. Even the lungs that are normally bright pink were pale. I have resharpened the head and it is ready for service again.

At any rate I hardly think shooting two animals with it makes me an authority on the head but all indications of its performance are positive.