I have both a z5 3.5-18 BRH and a z3 3-10 plex. The z5 is a few ounces heavier, not that big of a deal, however is it odd that my eye prefers to shoot using the z3? I feel like I struggle to get a good sight picture at the eye box with the z5, especially when its on 18 power. The z3 doesn’t matter what power its on I get a nice sight picture, its clear, crisp, no mirage (obviously because its less power). I’ve never killed an animal past 300, and it was done with a basic Leupold 3.5-10, so I don’t see myself shooting anything more than 500 honestly. 500 would probably be my personal maximum at a live animal. It is nice to shoot targets with the 18 but I was thinking of actually getting another z3 3-10 or maybe a 4-12 with the BRH. I prefer the BRH over the BT. The z3 I have now would be kept for PA deer hunting.