I just bought a new p320c. Took her out and it shoots low. I know sig uses combat hold on some guns. My mk25 was sight picture #2. I really liked that. Would like to get the p320c to that setup. I have #6 front and #8 rear. 9mm. Would a #8 front fix the problem. Around 2-3" low at 7 yards ish. Just curious if someone has done this. Thank you.