While performing one of my routine checks on the angle of my laser jammer heads, I noticed that the top and bottom of the ZR3 head are slightly angled towards the middle, when viewed from the side. They are not flat (Look at the attached pictures to see what i am talking about). So when i check to see if my LJ heads are pointing up in the sky or down to the ground you get a bad reading. The only way to see if your angles are correct or not is to use that FAINT line in the middle of the jammer (Refer to picture). Has anyone else noticed this?