Since we're talking FOC, would someone double check my math for me as the way I have it figured, I have about 15.8% FOC. My arrows are 28.5" long, 5575 which weigh 8.2 gr/in., with 100 gr. tip and 3 4" vanes, which I beleive weigh between 388 and 390 grains total. So the center of the arrow is at 14.25 and the balance point is at 12". So is my number of 15.8% correct. And also, if I were to shorten my arrows 2", which I can now with the drop away rest and still have enough arrow out front, would that stiffen the spine so that I could go up to a 125 gr. tip. In other words, I'd loose 16.4 gr. of arrow but gain a total of about 9 gr. of total arrow weight. But, what would that do to my FOC?
Also, my draw is 28" on my MQ1 and I have it set at 70# pull with 80% let off!
Any help would be appreciated?