10G2S: Its way too easy to get good groups with this rest even if the bow is not in tune,and that is a problem. Noise, speed loss, and screwed up fletches can happen if you use too light of a spine arrow for your bow. There is also the possibility that you had too tight of a biscuit to arrow fit, the biscuit should fit loose around the arrow. A high nocking point or a bow that has not been adjusted to an even tiller will also cause the arrow to go through the biscuit a bit sideways and you will get the results that you described. If you want to get good results with the biscuit its easy. Shoot the correct spine arrows for your bow. Install the biscuit so its parallel to the bowstring, not tipped forward or backward. Set the bow at an even tiller. I usually just tighten both limb bolts down, then back them both out an even three turns each, this allows you to adjust the tiller later if need be in order to get a level arrow in the target. The nocking point should be installed on the string so that the arrow is at a 90degree angle to the bowstring and the biscuit. You should grouptune to establish the correct windage setting for the rest. On most right-handed bows the nock travel is forward and to the left about an 1/8" so the optimum windage setting is generally going to be about 1/8" to the left of the centerline of the bow for the bow to shoot its narrowest groups. After the windage is set the tiller may or may not need to be adjusted in order to get a level arrow in the target. If the arrow hits nock high the upper limb is doing more work than the lower limb so you would tighten the lower limbolt in order to get a level arrow in the target. If the arrow is hitting nock low the lower limb is doing more work than the upper so to correct the tiller you would tighten the upper limb bolt in order to get a level arrow in the target. The nocking point can remain at the 90degee position on the bowstring. You can make very fine adjustments with a wrench on the limb bolts instead of raising or lowering either the rest or the nocking point. Tuning a bow this way does not require a lazer or a bowsquare or a paper tuneing rack. The last dozen bows I set up in this fashion shot broadheads and fieldpoints to the same point of aim. There is more than one way to tune a bow. I have been using the whisker biscuit since they first came out. When the biscuit is used properly it is a very quiet, accurate, and durable rest. I have never had a biscuit freeze up in the field, and concider the possibility of that happening to be very remote. Happy holidays to everyone! Good luck hunting!