Paul, Excellent posts!! You like typing way more than I do. In a word I would not use them even though they would kill a deer. I think they are just another marketing ploy trying to cash in on the speed craze. I personally would not shoot ahunting arrow with less than 12% FOC and I actually prefer more. I have a set of FMJ's that weigh 497 grains and have an FOC over 20%. A lot of setups will work, and I have several setups and use them according to shots I expect to encounter. I am not Pro light or Pro heavy. I think each has their place and time. My varied hunting arrows weigh from 326 grains to 497 grains, but one thing they have in common is at least FOC of 12%.

Dan