I think the drop away gives you a little more forgiveness, and if working properly, no fletch contact. As far as accuracy goes, maybe a little edge over a properly set up Biscuit. I have my #1 bow set up with a QAD, and the backup had the Biscuit. Arrow flight, accuracy, and broadhead flight seem pretty much the same with both. My QAD started hanging up, and I took the rest apart 3 times, finally taking out the little catch that kept it in the upright position. Now it functions like a Trophy Taker, but it does give me clearance every time, which it didn't do before. I still like the rest, and the way my bow shoots.

BUT, if you are tearing up vanes with the Whisker Biscuit, then either you are not using the right vanes (Flex Fletch, Vanetec, Blazers, or feathers), or there is a problem with the setup, and you are getting strong contact with the support bar at the bottom, or some othe tuning issue. With at least 3 bows, I have gotten the Biscuit to shoot pretty well, at least good enough to shoot 2-3" groups at 30 yds. Full helical with good vanes is not a problem. They should show almost no wear when you use good vanes and the bow is well tuned.