i am using easton 2314 alum arrows and currently are 28 in. i shoot a Bear Instinct at 65 lbs. i am using trophy ridge drop zone rest. what i need to know is if i cut arrows down further like 27 or 26 inches will i still be ok with foc and will i gain more speed. i use 100 grain heads and 26 is low as i can go with arrows. or should i just leave them alone at 28 inches. thanks for all info in advance.