Where it came from wasn't the correct terminology to use, I guess. I mean how did it come into play in archery?
I understand the affects of using a lighter arrow to accomplish more KE, I am refering to what I have seen posted was in reference to adding more weight to achieve more KE....Hell, I don't know, I am gonna keep setting mine up as heavy as I can without loosing KE.....Unless I can be proved that KE achieved with a heavier arrow is not the way to set up a hunting bow....