Regarding this subject, a mechanical broadhead that is designed to delay the opening the most effective blades on the ferrule until a degree of penetration has occurred, I do not have to have used the head to know that the head cannot be as reliable and as consistently effective as a fixed blade BH.
I don' t think that there is a mechanical head out there that will do as good a job as a good fixed blade head will. Most mechanicals do not make an entry hole anyway.
Lets face it though there are actually only a few things in the archery sport these days that are really tried and true, muzzy broadheads being one of them. There are so many new things coming out in this sport every year that it makes the head spin. From all of the new drop away rests, to sights, to bows themselves. I just think that we should reserve judgement until we have someone actually test them. Who knows they may just surprise us all.
And yes there are definetly some idiots out there, I just haven' t heard / read about them here.
The Tri-Triska might be a better design. Their blades are sharpend on the back side so as to create an entrance hole.
http://www.triskask.com/