RE: Whisker Biscuit problem?
First. What type of vanes are you shooting and how tall are they? What type of bow?
On my son's bow with the original WB and 4" Bohning vanes no matter which direction you turn the nock it will always clear the riser and the perimeter of the bisquit. His bow is a Martin Tiger and it has very little cut away on the riser.
Have you checked the center shot? This alone can cause strange things. Also, the WB will not tollerate underspined arrows.