Has anyone mounted a 40mm scope on a Knight Disc Elite using Leupold's QR bases and rings? If so, what rings did you use, low or medium? I know the Leupold site recommends low rings but they also said low rings for my Omega and the scope rested on the barrel. I had to send them back in and trade for medium rings. I don't want to do this again for the Elite, hope to get the correct rings the first time. Thanks!