FOC will not fix a bad shooting bow/arrow combination . . .it may help a little, but, it is not a fix.
FOC is something for the anal archer.
The front end of the arrow needs to be heavier than the backend of the arrow . . .anytime you screw on a tip, you will be good to go.
Consistancy is the key to accuracy. Every component needs to weigh the same. Exactly, the same? Not really, but, that depends on just how far you are shooting and just how tight you want your groups.
Too much FOC and your arrows will "nose dive" at longer ranges. How far out this "nose dive" takes place and its severity depends on the speed of the bow and the weight of the arrow.
Too little FOC and your arrow will float and be easily "pushed" by any crosswinds. They will still shoot pretty accurate. I suppose if somebody has an arrow that is heavy enough to shoot without a tip, then they can test this theory and let us know the results.
Most arrow combos have sufficient FOC.
You need to weight your arrow according to the game you are hunting for proper penetration. If you have proper penetration, then your FOC will be just fine.
I'd rather wear out than rust out.
Perception trumps intention.
2006 Exomax w/Agingcrossbower Custom Stock
20" Easton Powerbolts w/125gr Trophy Ridge Stricknines & 2"Blazers
Boo Custom Strings