While I love the brightness and color of my 350mW 640nm LW... I started to notice double lines in my images. I popped open the cover to reset the alignment. Unfortunately, LW saw fit to only have an X-axis adjust, not Y-axis . As the beam was off on the Y-axis, I was not able to adjust it and I didn't want to start messing around with the diode mounts. Did some quick and dirty fixing with an MM-1 until I get my tiny XY mount from Andrew (drlava) so the cover will fit back on. I know the new Kvant 637's just came out... how are the internal adjustments on those?