I've been trying a thing called a FOB (stands for Fletching Only Better)that I found at www.starrflight.com that isn't too far from this, andI have been pretty impressed thus far. I'll let you know in this forum what my final choice for hunting will be, but the reduced crosswind drift has been significant. I've shot at 80 and 100 yards for the past couple of weeks, and the FOB is needing only about 1/4 the adjustment for wind that I normally do for 4" vanes.