Maccjo, I'm glad to hear the Predator IV works well for you. I just bought one and so far I really like it. However the first time I sighted it in is set the arrow speed adjustment in the middle of the slot. My bow shoots 250fps. With this set-up, I was shooting about 3"-4" low at 30 yards. Then I set it almost to the bottom of the speed slot and it put me just about right on at 30 yards, maybe 1" low. I was wondering where your set-up is and would appreciate any comments or tips on the Predator IV. Also did you notice any difference when you shot from a higher height than where you sighted in? I also had to add a screw & tubing to stop the pendulum from swinging too far for 5 yard shots, but it works great. Also have you tried to add a fixed pin or two for ground shooting practice? I really like the large glow ring and bought the special peep to go with it -- it really improved my groups. Thanks