I JUST RECEIVED MY GOLD TIP 100 THEY WEIGH 10.7GR PER IN. WITH 3- 4IN. VANES 29IN LONG THE TOTAL WEIGHT IS 467 GRAINS AND THE FOC IS7.1% LAST YEAR I WAS HAVEING POOR PENATRATION AT 20 YARD HUNTING WHITETAIL, THEY WERE ALL BROAD SIDE AND I HIT THEM IN THE LUNG BUT, NO PASS THRU. I WAS USEING A LIGHTER ARROW 370GR. 55/75 XT GOLD TIPS. 100GR ROCKET STEELHEADS. THE BOW I AM SHOOTING IS A MATTHEWS SQ2 28IN DRAW AT 72POUNDS I USE A RELEASE, THRU THE CRONOGRAPH LAST YEAR I WAS AT 245. MY KE. THIS YEAR IS AT 60 AND LAST YEAR I WAS AT 49. DO YOU THINK THIS ARROW IS TO HEAVY?? I AM HOPING THIS WILL PROVIDE BETTER DOWN RANGE PENETRATION.