Good point Ossage. It is interesting how two similar bows can have the same AMO speeds and yet vary in IBO speeds by as much as 20 fps.

I tend to agree with Rangeball about what you can expect from any given setup. Most folks who set up their bows and do not really care about speed usually end up with an actual speed closer to the AMO rating for the bow. Those of the archery community that do care about speed tend to do everything possible to their setups to achieve the fastest speed from their bow without compromising accuracy or practical issues such as noise and vibration levels when it comes to a hunting rig. In their cases the actual speed of their bow will normally be at least halfway between the AMO and IBO speed ratings for the bow if not even closer to the IBO speed rating. Rarely, if ever, does someone actually have a setup that will surpass the IBO speed rating for their bow.