0 ? 3cm forward : All Mountain: If you plan on skiing mostly outside the park, and want the ski to behave like a traditional ski, you should stay on the conservative side and mount traditionally.
3cm-5cm forward : 50% All Mountain, 50% Terrain Park. When mounting beyond 3 cm, you will lose a little of the traditional feel of length in front of the binding, but with more tail, you gain the control in the air and riding switch. Seth Morrison mounts his Pistols typically at 5cm forward.
(hentet fra K2 sine sider om montering av binding på PE)