Now that the dust has settled.... can I say I'm not a mechanical fan either. I have nothing to base it on except 37 years of bow hunting and a lot of experimentation. I guess in all those yearsI've killed a buch of deer with probably 10 different broadheads. I've seen a lot of damage, good shots and a few bad. I don't need a glancing blow from a 2 inch mechanical to tell me sharp things can cut. I do want something with as few things to go wrong as can. I want something built like a truck. There are several that do that and in my opinion are all fixed. If it isn't broke I really wouldn't fix it.