That's a case of an instructor not sticking to the well laid out lesson plans and policies. When they start trying to convince the class that THEIR way is better it can only lead to misinformation. AND... in this case the guys theory is whacko. Some people.<img src=icon_smile_sad.gif border=0 align=middle> The IBEF instructs that NOTHING beats a SHARP broadhead. I believe it says passthrough for sure.