Nope haven't see that at all? I'm assuming there are 4 fletchings there as well?

Is arrow noise really that much of a consideration given the distances we are shooting?

Also isn't there a point where high FOC becomes counterproductive with nose diving arrows?

I do like the overall concept of heavy arrows, and those single bevel 2 blade heads like those Grizzlies but is this more of a thing for extending the capabilities of traditional gear on larger or dangerous game because it seems like people have no problem slicing through whitetails consistently with much less consideration for extremes or detail?