ORIGINAL: LKNCHOPPERS
Black Stick, be very careful. Do not push the envelope. Yes, one shot with too light an arrow can ruin your new bow. Your bow is a bow, not a crossbow. Shooting arrows below 5 grains per pound is a recipe for disaster, shooting an arrow less than 300 grains is very dangerous. It is obvious that you really do not have a good understanding of the mechanics and physics of shooting a compound bow.
I admit that I do not understand the physics of compound bows. I have never built one. I have only tuned and attached parts to my own equipment.