This is more for anyone following this post and was not clear on the crop mark thing.
On the Cj 500 you can print crop marks (two in the front, right and left sides of the page, and one on the back right of the print job). From there once the job was printed you can remove it and laminate then install back to about the same area it was in before. As long as you are within 5 deg. all you need to do is have the crop marks in the front of the print, line up with an imaginary line from the cutter head. From there it will seek out the first right crop mark then go find the left crop mark and last find the back right automatically. Then once ready you just send the job as cut only and it cuts. My test was on a few decals. I am not sure what it will be like on a page full of decals to cut but on the few I did it was bang on.
I am not sure if this is what you would call "auto registration" or not but I think this is all that the OP was wondering about. You also can do a manual line up by moving the cutter head over each mark and hitting a key to set the spot but I think the automatic one would be faster.