Jimbow
I was going thorugh these threads and saw that I missed your response.
Actually the Turbo is quite compatible with the whisker.
You would think it would slow down, but what slows an arrow down in a whisker biscuit is the total area of vanes being pushed through the brushes. A conventional hunting arrow has about 7 square inches of vane that has to pass through the whisker brush and on average lose from 2 to 12 fps depending on setup. The Turbo has only 1.6 total square inch of vane. PSE tested the turbo and could measure no speed loss at all through the whisker. A good many of my staff shooters use the whisker and the turbo. Actually If you check out our website , all the African game taken by Terry Whitford who has photos on our site were taken with a whisker biscuit.