I took my Aimpoint Comp M2 on an M4 out the other day. It started off low left and when I adjusted it, it went high right. I realized then that I probably didn't know what I was doing with the scope adjustment method. The manual says the elevation is on the right, and the windage on the left. But, the left knob says "UP-L" and the right is "UP-R." So, any advice on the proper method of doing it?