Arvin, the biggest single source of energy loss on a bow is limb vibration. The more working limb you have the more opportunity for vibration. If you go too short you take set and pick up hysteresis, the trick is finding the balance point between the two. I suspect long working pyramid bows might slightly exaggerate this effect because of equal or approx. equal thickness limbs. Not really sure on that one. It would be nice to get some slow mo action of the limbs on that bow. I know it stores a lot of energy, and it didn't really take on any set so it has to be loosing it somewhere.
