Can someone explain what is the center on the J-Mate when targeting the QR target, is it the green crosshair for the laser (which is really hard to see outside! Might suggest red or purple) which is off the center of the laser a fraction or the Calibration Crosshair (which doesn't line up with the laser crosshair)? Also, the crosshair no longer grabs the center of the QR target when I click find by Optic. Also, when I click the screen to center it is all over the place. Also, when I use the step arrows to center it is very glitchy; I adjusted to my preference, but when I am clicking it may do what I set it to or it jumps really far.