Well, I have to retract something. I said that my completed arrows weigh 400 grains. That's what my pro shop owner told me. According to the Gold Tip website arrow builder,a 28 1/2" XT Hunter 5575 with 4" vanes and a 100 grain point should weigh 383 grains. Again, the same configuration in the Pro Hunter Hardwoods HD would weigh 460 grains. A 77 grain increase just to go to camo? I know I could use the extra weight, but what are the real pro's and con's of this extra weight? Is TFOX or someone else out there who has the calculator that can say what FPS I'll shoot with a 460 grain arrow with 70# draw and 29" draw length???