RE: Do whisker biscuts ice up
NO-Snow was developed primarily to keep feathers dry when it rains. The bristle of the biscuit stay flexible well below zero degrees. If you, you bow and arrow, the whisker biscuit and your release were all covered with ice the whisker biscuit would probably still function normally but I'd still recomend breaking off any ice as it forms. Its comforting to know that at least one piece of equiptment is going to work perfect for you. Good luck hunting!