I am thinking about buying a BSA sweet 17 to put on my Savage 17HMR. The reviews are mixed from "junk" to "great scope". I am looking for some info from those who own or have owned them. Do they hold zero, are the hazy, are the older ones better or worse then the newer ones. My 3x9 Bush works fine but the trajectory comp part of the BSA sounds handy. What does everyone think?? Thanks!