I shoot an Allegiance with a 2X2 Peep, Kisser, and original string silencers. I shoot 28" 7595 GT Hunter Xt with 3" vains and an 85 gr tip for a total arrow weight of 379gr. It chronos at 298fps. I was shooting a 5575 with same set up, minus kisser, at 304. I shot an arrow that was 301gr once. It went out at 328fps. I can not imagine how your B/C got 334. I could not get 334 when I shot an arrow that was under IBO specs(I do not recommend it being done, momentary lapse of good judgement). I agree this must have been the double super secret bow. Where can I get one?