RE: Wisker Biscuit Tuning
If the bottom two fletches are wavy they are probably hitting the windage bar that holds the biscuit.
If you even the tiller of the bow and nock the arrow at 90degrees to the bowstring the bow should shoot a level arrow and the wavy thing won't happen to your fletching.
The windage for the rest should be determined by shooting the correct spine arrow for the bow at a vertical line at 10-20-30-40-yards. The correct spine arrow will hit the same vertical line at different distances while the incorrect spine arrow will not. The optimum windage setting is not always going to be with the rest in the centerline of the bow. Often the bow will shoot its best with the rest 1/8" to the out side of the centerline. You have to adjust and shoot in order to see.
Good luck hunting! >>>------------>