I have a Mantis and have been using it for the last 2 seasons. I am very happy with the sight and love the V-drive for 3d. I would suggest that you practice a lot with the pendulum feature and note where you hit at different distances. While the pendulum does help with compensation there is still as much as 2.5" of vertical variance out to 35 yards. Out to 40 I am still 5 inches low, so you need to consider distances. All in all it is a great sight and I haven't found a reason to switch yet.