I'm not trying to be argumentative but my experiences have been much different.I destroyed the jackhammers more than 50% of the time.That's simply unexceptable in my opinion so I have no confidence in them.I never experience a failure with the whole blade.The failures always occured where they where connected to the ferule.That's the problem with mechanicals.Regardless of how thick they are,they only connect in one spot,generally with a ring or small screw,which compromizes durability.You're point about a 1 3/4 inch broadhead is 100% correct.That can happen on occasion so why take the chance.I've busted the shoulder on more than one occasion with muzzy's,wasp bullets and slicktricks and killed the deer.Most of those instances where with the opposite shoulder though.I guess I just don't see the need for such a wide cut.A hit the through the vitals with any broadhead almost always means a deer falling within a sight or at least ear shot.

I'm not bashing your choice.In my experience,big mechanicals have no practicle advantage over a quality fixed head.I think if you use them long enough,you'll experience a negative situation.I'd be glad to mail you a picture of my collection of busted up Jackhammers.There's some rocket steelheads in there as well that are totally worthless in my opinion.