I been putting off Lowering my sights. When I shoot I have to cover my target to hit in the Middle. I want a 6 o'clock target. So... Do I turn Counterclockwise or Clockwise to lower my Gunsight. Once again I have to cover the bulleye to hit it. I want to aim below the bulleye to hit ( 6 o'clock). When I do that I don't need lock tight on it afterwards right ?