I am a huge proponent of High FOC arrows. My setup last year was a 2005 Old Glory set up shooting 65lbs with 453 grn arrows with a FOC of 22% (205 grains up front on the arrow) shooting at 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. Yes it will slow your arrows down and you may have to go up in spine weight but, trust me arrows with that weight up front really pack a punch. Read some of the reports by Dr. Ashby on broadheads and you will she he is also a huge propent of this also.