Had whisker biscuit, Trophy Taker Dropaway and NAP Quiktune Sizzor. Whisker biscuit was great, but destroyed a lot of fletchings if I shot a lot. Trophy taker, I think was set wrong and would drop away too quickly, so was impossible to tune. Could have tried to fix it, but bought the Sizzor which makes adjustment of the timing easy. I get the benefit of full containment, holding the arrow as long as I want it to, and yet have it release before the fletchings reach the rest, which makes it easy to tune. My field tips are on the plate out to 80 yards and my broadheads out to 70 yards are on the plate 3/4 of the time. I think the other 1/4 is poorer form rather than the bow tuning.