Quote Originally Posted by animalwithin View Post
Thanks for the details SVMAD. It does make sense, so to increase FOC, simply increase frieldpoint/BH grain weight correct? I know eventually a dramatic increase in fieldpoint/BH weight will cause a curvature in the arrow's flight path and one has to aim a few inches higher to compensate for the downward trajectory.
Correct. The best way to increase FOC is make the BH/FP heavier. You can (if you had plastic vanes on) switch from plastic to feathers (since feathers ar far lighter than plastic), so you lessen the weight at the back.

Increased FOC also aids in penetration when hunting.

Just be mindful that if you increase your BH/FP weight, you have to take into account the static (and especially) the dynamic spine of the arrow. Doesnt help much if you increase your BH weight, and the moment you release the string, the arrow breaks up. Remeber that this is because the string is pushing the back of the arrow, while the point is still inert. That means the initial force has to go somewhere, and this is usually sideways. If your arrow spine is not strong enough, you will sit with arrow splinters in your hand.

throw your specs of bow pounds, draw lenght etc on here, so we can help you make a good decision.