Martins done it for years. You don't load the arrow broadhead first, you go nock first. I have no personally shot the bow, but I will very soon. If you do a search on the Technical forum for "Hows this draw force curve look?" you will see a pic of the draw force curve. There can be a TON of let off with these bows. oh, and 300fps was shot at 55#, they didn't have 70lbs limbs at the time of the webpage being designed, but they do now. And from what I've heard, in the videos and word of mouth, these are really quiet surprisingly.