I own 3 and killed a deer with each this season. I pimarily use my Energy 35 until (if) I get a buck. To fill doe tags, I will use my GT500 and Synergy. I practice with each before using them though.
Two, one set up primarily for the spot and stalk and 3d, 70lb, lots of stabilizer and a movable sight. The other setup for turkeys or treestand hunting, 60 lb and a fixed sight.