Here's another question - at what point does rotation through tissue become a liability?
I know the rationale behind single bevels and rotation - rotation splits bones as the head goes through them, and single bevels leave S-shaped wounds that possibly bleed more. Does the greater rotation make much difference in terms of penetration during testing? Does it use up some energy as it rotates? With the offset blades, is there more resistance when cutting soft tissue?
I have to say that my initial reaction to this is 'gimmick'. I'm not meaning to insult VPA - the glowing accounts of quality and service on this forum are proof of their integrity. But I can't help but think that this is one of those good ideas on paper that doesn't make much real difference. I'd have to see some comparisons between double bevel, single bevel and single bevel offset before I'd be convinced. Anyone have pictures or testing data?