Just in my small experience with vortex scopes.. Have a viper pst 6-24x50 and only had it in the field one day and my Occular lense busted loose (lost o-ring or never had one to start).. Have had leupolds for years, have dropped them, wadded up on dirtbikes with them, dented them, and still never lost zero or broke.. Probably headed back to leupold if that is the quality control a customer gets for a 1k optic through vortex. You have to trust your gear!