I have 2 leupold variables. Vari x IIs 6x18, with target turrets. The glass is very good, but both have been back to get new erectors twice. They were good for a while, but then gradually shifted from zero, and would not return to zero after dialing. I also had a point of impact difference of 2" between 6x and 18x at 200yds with one scope. And no it wasn't parallax. Leupold fixed that too. I replaced one scope with a SWFA 3X15. It has been rock solid. The leupolds were on a custom 243, and one is still on a Savage 30-06. As stated, the glass was fine, but I could not depend on them.