I' ve mounted whisker biscuits on my last three Mathews bows. The Mathews has a low shelf and a high grip. The droptine wingage bracket run straight across the bottom of the biscuit to the mounting bracket. This combination causes the bracket to occasionally thump the back of my thumb with the corner of the bracket. The deluxe whisker biscuit windage bracket come off the side of the biscuit from about the three o' clock position. The higher windage bracket on the deluxe yeilds more clearance for guys with big meaty paws like me. Good luck hunting!