I put a .272 rear sight on now I buying a .200 front, both from Ameriglo. I'm replacing a .215 hiviz front & factory adj. rear that I set at about .275. I was spot on at 30 feet, with 6 o,clock hold. I am not sure I will be on or will I need to use 12 o,clock hold. Any Help or suggestions, I will be grateful.