Here's the "qualified" part. Most bow makers do adhere to IBO standards, but they may also tweak their test to achieve the hottest arrow speed possible. They'll fling a bare (unfletched) arrow shaft, and use a naked string; no nocking point, and certainly no peep sight or string silencer, all of which will slow an arrow. If possible, they'll set the bow at the lowest option for let-off (65% vs. 80% for example), forcibly over-draw the bow, and shoot dozens of arrows. Then they'll post the best FPS rating, rather than an average.