I've been stuck on 2 blades, specifically zwickey eskimos for the past 14 yrs. I've had awesome blood trails to no blood trails at all (most instances we didnt even bother looking as we saw the animal go down).

I am a firm believer that more penetration is better on marginal hits more so then more blades and trying to create a bigger wound tract. I am sure my buddy will prove me wrong (hes the R&D for magnus broadheads), but until he does, I'll stick with what has worked for me.

They fly great, the big thing about arrow flight is proper spine PERIOD! Even out of fairly fast compounds 260-270's, I know guys shooting 2 blade heads and they fly perfectly!

One thing about guys with wood arrows...take the dang time to mount them right! I cant put to numbers the amount of guys I am seeing with heads on as crooked as horseshoes, then they walk out and complain they dont fly....well duh! LOL! Take those same heads and mount them on an insert with wobble coming out of a faster bow, you'll have the same problems.

Also a note on penetration, your first and foremost biggest loss of penetration comes from arrow movement usually due to wobbly arrows. Get those arrows flyiing straight with no wobble at all and you wont have problems penetrating even moose!!!