Does anyone have this scope or has used this function on this scope? I tried it for the first time yesterday and it failed me. I followed instruction, zero'ed in my rifle/scope then set the "0" to the mark, tightened up the screws quite tight and I was still able to turn pass "0" 2 clicks, which defeated the purpose. I then tried to put it back to where it was (non zero set) and tried it again this morning and this time it turned 3 clicks pass "0". I wonder if I did anything wrong?