RE: Real world FPS
I'm not sure, maybe you just aren't picking it up but these bows are under a lifetime warranty and warranted all the way down to 5GPP. IBO standards not AMO.
Are you in AMO's standard guidelines or are you pushing the envelope?
Under this standard the bow being tested will have a maximum pull weight of 60lbs. The arrow will have a grain weight of 540 (9 grains of arrow weight per pound of bow weight). The draw length will be set at 30 inches