Moving a 4-16 ATACR from a flat base to 20 MOA. I didn’t adjust it much when installed flat and it worked fine. If I’m thinking about this correctly, I want my crosshairs 6.5 MILs or so high when compared to a 0 MOA setup, right? Ideally I could start around 8 and work from there. Can’t see why I would need more. Anyway, I couldn’t get it more than about five following what I thought were the instructions to undo zero stop. Got frustrated and started fiddling, now it appears I’m stuck the other way. Should this black disk with holes move when the zero stop turret is removed? I can’t get it to move in either direction. Additionally I only have a couple mils of come up before it acts like I’ve used all travel.