With a biscuit the hole should be slightly bigger than the shaft of the arrow, and of course the chocolate chip cookie-vane goes up�that's about it. I used one for many years, and they do what they are suppose to do; however, the technology in today's offerings in dropaways is as good, if not better than the biscuit�you couldn't get me back using a biscuit for anything. Most dropaways such as the Ripcord and QAD, are full-containment, can be locked in the "up" position and will offer more consistency and tighter groups in most cases.