HuntingBry... You picked up on that too, huh? I was thinking the same thing myself. Good analogy. <img src=icon_smile_big.gif border=0 align=middle>
"My contention is that with a slower set up (round wheels, soft cams, traditional gear) and longer draw lengths you are better off with heavier arrows that will store more of the limited energy that you have. Arthur, let's face it you won't be straining your round wheel bow too much with lighter arrows. On the other hand, with a setup designed for speed and shorter draw lengths, which includes many of today's bows, you are better off with lighter arrows that will translate much of that stored energy into speed and create high amounts of KE with the higher fps."
That is kinda what I was trying to introduce into the discussion a couple of pages ago. I would liken it to a ping pong ball and a golf ball. Throw a ping pong ball with your best, overhand, Nolan Ryan type fastball pitch and then do the same with the golfball. The golfball rockets away and the pingpong ball kinda lobs off into the ground a few yards off. Then set the two balls on a table and thump each one with your finger (like playing paper football). The pingpong ball goes flying across the room and the golfball rolls a few inches while you dance around holding your finger and muttering unrepeatable words.<img src=icon_smile_wink.gif border=0 align=middle>
A setup with a long power stroke, like mine at 25", would show having an efficiency range on the heavy end. The short power stroke, 20-22 inches like 'most' people probably have with their bows, would have a lighter range of arrows they would shoot efficiently.
I also think that long, heavy limbs vs short, light limbs, or bows with a lot of limb tip travel vs those with short limb tip travel, would show the same difference in what arrow weights they would be more efficient with.
Does that make sense?