It won't ever be perfect...sadly. Watch how many excuses they make when your cuts are off by 1/16" or more after the tech leaves. Some of our favorite excuses - "add more bleed to your designs" "Do shorter runs" "Do this crop mark thing where crop marks are printed every 6 inches"
What it comes down to is a list of cop outs from Roland that you will believe, and adjust to, because you either have to, or you buy an external (non Roland) cutter, this is an issue that they have had for probably 10 years now, and no one there has cared to fix it, which is sad because they advertise "production perfected" except half the machine is basically worthless if you want any kind of cutting accuracy from it. Their onboard "print / cut tune up" option your tech will do, where it prints a graph and then cuts into it, will be an absolute joke. Of course the machine will cut accurately 2" up the vinyl and right across from the cutting head.
We quit using their onboard cutters after having 3 Flagship SolJet printers, and NONE of them would be accurate no matter what we tried. You're wasting your time trying too, unfortunately. When we saw their external cutters cutting just as far off at the SGIA show last year as our SolJets (off by over 1/16", maybe even 1/8" on a run that wasn't that long), that was my final straw, if they called that "acceptable" and were proud to sell a machine that did THAT, then that's it for us, no more on board cutting for us since, and no problems since moving away from Roland cutting devices. We have a brand new Pro 4 and the cutter has never been used on it, because I'm embarrassed to sell products that are mis cut at random intervals, every. single. run.