Help! I have several SB PM IIs. For the first time I bought one with the MTC locking, Zero stop turrets. I've read and re-read the directions several times. I only have about 16 mils of elevation and there should be 26 yes I am on the first rotation, the indicator is flush with the top of the turret. I need to move the zero stop down. It only allows me to re-set it up in elevation. I followed the directions, moved the lock slide down, loosened the two allen set screws (although the instructions state they are in the 3 and 9 o'clock position, and on my scope they are at 3 and 6, the slotted screw head is at the 9 position, which I believe you are not supposed to loosen or it messes up the MTC) so the directions do not match the scope exactly, but I loosen these two allen set screws, and then unlocking the turret I can rotate the elevation up, but cannot rotate it down beyond the usual three clicks from zero. How do I set the zero stop down? Anybody else run into this problem? Thanks in advance for your help.