5% difference MAYBE in a $1,000 bow vs a $200 bow
Yep--and how many of us are so borderline in draw weight that a couple of pounds is going to make the difference? I hope that, if I ever get to a point where 5-10 fps makes the difference in a kill and a wound, I will have the good sense and discipline to hang up bow hunting.
One more thing--Fred Bear killed an African bull elephant with one arrow back in the 60's (I think--need to watch the video or read the book again) with one of his bows. He was pulling 75# (again, I think--it was less than 80#, may have been 70#)--just how much better do we need?
Don't get me wrong--I like a bow with good speed, and shoot a comparably fast bow, but I think the emphasis winds up in the wrong place--on speed, more speed, and nothing but speed. Proper tuning, arrow flight, and (especially) accuracy mean much, much more.
Chad