BBH, I'm not totally doubting those numbers however I'm asking if this is out of a shooting machine or mathmatical assumptions?

My question then becomes why can I take nocks off my arrows and/or hit my mark with my above numbers at either 285 or 305 fps.....with your numbers I'll be two inches low between the two numbers and that has never been the case with me or any of my friends. I wouldn't be able to dial in my sight and still be dead on however it is equal. And pin gap on fixed pinned sights don't change between the two speeds and still be dead on....to group dead on...