Today I took my ATACR 4-16 to the range for the first time and once I zeroed my rifle I proceeded to install the Zero HOLD feature. As per the manual this involves removing the elevation cap and then loosening the four screws on the black clamp wheel (clutch?), turning the clamp wheel clockwise until it bottoms out with no further movement, then tightening the screws and installing the elevation cap back on. I can now dial elevation up just fine. The problem is that I can only dial 0.1 mil (1 click) below zero and the Zero Hold feature should let me dial up to 2 mils below. Yes I am holding down the zero hold button when I do this. So I followed the FAQ instructions in the manual about this problem and it states that I need to access the black clamp wheel again but to loosen the screws and turn the clamp wheel 1/8 - 1/4 counter clockwise to back the wheel out. This is another problem I ran into, the clamp wheel wont turn counterclockwise at all. I loosened the clamp wheel screws one full turn and then even half a turn more and the wheel still will not turn counter clockwise. I did not want to loosen the screws anymore since removing them could cause more problems. I'm gonna call Nightforce customer support on Monday but wanted to see if anyone else has ran into this problem before?