I don't know where you got the quote
You are kidding right.......I could have sworn that I mentioned that a bunch of times. Comprehension problems????? On my part?????
Here is another interesting quote from Dr. Ashby. I'll try to make this as clear as posible, I got it from Tradgang.com posted March 24, 2005 by Dr. Ashby.
As I point out in the article, not all momentum is equal! Momentum gained from increasing arrow mass results in more penetration than momentum gained through increased arrow velocity. The data here is clear cut. The reason is because the increased tissue resistance encountered by the faster arrow (assuming both arrows have equal impact momentum) reduces the time over which the available momentum is disipated in the tissues: the lighter arrow will have a lower Impulse of Force - regardless of the distance of the shot.
Pretty interesting. Increased tissue resistance encountered by the faster arrow.