RE: kinetic energy
I know what your saying. I have a 2005 Old Glory set up shooting 65lbs with 453 grn arrows with a FOC of 22 (205 grains up front on that arrow fellas) shooting at just below 260FPS with Kinetic energy of 67 ft lbs. My bow has never shot better than it does with a high FOC setup. those arrows are flying great. I highly reccomend tinkering sometime with an arrow setup with a FOC over 18 or 19 trust me you will notice a difference.