Mike,
The actual test results on this bow using a shooting machine were about 190 @10 gpp & 195 @ 9gpp. at 27.5" draw. I'm quite certain a guy will get better speed with a longer draw length out of this design given the same gpp. I've had some of these hit 200 fps at 10gp with a 30" draw.... but it's rare.... The black glass with single carbon back seem to be the best performance, but i've had all glass bows ring the 200 fps bell a few time too
All these bows test a little differently. The different cores, type of glass or carbon used, clear glass over veneers, vs black or brown glass... It all makes a difference. but even building two bows identical you can get varied test results.... There is just no explanation for that....Kirk