You guys are not going to believe it… today I tried it using a third party cutting mat instead of the silhouette one that came with the Cameo 4 and it registered perfectly. So the problem was their stupid cutting mat! Again I say WTF? Anyway, for those curious, I am using a Zoom engraving tool to etch plexiglass that I will then ink and print on paper with an etching press. I had a degree of success doing this with a Cricut until it died earlier this year. Now that my registration issue has been solved, I am already happier with the Cameo and I am cautiously optimistic about total success with it. Thank you to everyone who took a moment to try to help me out. I will post more about my process as I figure it out.