they are sometimes loud and I've seen videos of deer spooking when they hear the arrow draw from 35 yards away.
That is the one and only reason I sold mine and replaced it with an APA Twister Safari. I now have no noise at all and a full containment dropaway. I loved the Bisquit, just could not live with the noise on drawback. Tons of hunters use them with great success, but I could not get past that "what if" feeling.