I never believed in them for a long time but finally broke down and tried the new deluxe model and can say that it is great. I did lose 1 or 2 FPS but no big deal. I switched to Blazer vanes and they are holding up great through this rest. As said before you can turn the bow in any direction and the arrow stays put. I know that most of us dont sit up in a tree turning our bows upside down but I like it for times when you are drawing on a deer or letting down. Especially when using a drop away becauseletting down can be hairy when the nerves are going and youve been holding back for a long time. My accuracy has not been affected in goign from a drop away to the WB. I don't shoot over 40 yards though. I probably would use a drop away for 3D but for hunting the WB is great!!!