ORIGINAL: GMMAT
Why would it be imortant? Doesn't KE compute off total arrow weight?
If your bow is tuned....and your arrow is flying true.....why would it make a difference what your 500 gr arrow's FOC was?
Just curious.
Jeff go read Dr Ashby's reports over on Tradgang. Lots of reading but it should explain it much better than I could how high FOC helps with a hunting arrow setup.