I would agree that most bows can be tuned pretty well with the Biscuit, but having a few single cam bows with apparently bad nock travel that have been a bear to tune leads me to question if all bows follow this "rule." Perhaps adjusting the tiller could have helped, but I'm doubtful on that one. I know guys who are setting their nock point over 1/2" above square to get good flight with some singles and drop away rests. The one I recently had would "slam" the back of the arrow down, hitting the bracket, and putting black marks on my Bohning Blazer vanes. Broadheads shot low with this setup. I experimented with a drop away, and the broadheads now shot high, and a little right (with the same field pt. POI as with the Biscuit. When I put on a shoot through rest, it settled things down, but made a ringing vibration in the rest. I solved that problem by selling the bow, and replacing it with a Darton CPS system bow. No problems tuning now at all.