I have since narrowed my scope choice down to these two models. I'm looking for a light weight, repeatable dialing scope. Will the Zeiss Z4 dial reputably without tracking issues? If that's a yes, that's the way I would like to go. If no, In my research so many have recommended Nightorce. Originally, I wasn't going to look at that scope due to weight, but I'm reconsidering as I want something that's dependable. Thank-you for you insight.