Good to have a leveller. TBH I just leave my STAC on x10 and crack on from say 30 - 250m Together with the occasional a single nudging the 300 mark ( in great conditions, and when I am able to’t reach it or it to me). Desire cookies to https://iwatchbands54207.answerblogs.com/31192585/how-discoveryopt-ed-gen-ii-5-25x56sfir-ffp-z-can-save-you-time-stress-and-money