I would definitely care about harmonics under the right circumstances. I just don't think that during rapid fire, in any gun, that it matters enough to warrant consideration. The movement of the gun caused by recoil has a 1000 times more impact on accuracy than vibration. Like the other poster said, for squeezing out every 1000th of an in, you bet! But how you going to do that during rapid fire?

Either way though, I agree with you. . I want one too! But that probably won't happen any time soon lol.

And I'd have to agree with BeltFed, he most certainly know more than I. 30 foot barrels!