NOT saying that cut to tip heads are " BAD" , just saying that at higher arrow speeds, a broadhead with less surface area (most NON cut to tip heads....shorter blades) will GENERALLY penetrate as well or BETTER than a cut to tip head.
I' m with Nub.....I disagree. They go through like a hot knife goes through butter.
Taz...most say 55lbs of KE is enough, but if it was me...if I ever did shoot a mech, I' d personally want to be higher.