SpyderPrint is a good one.
FYI, I suggest that you check out the PiezoDn forum (that you have access to) as this is where those who are using these devices live.
I’ve posted a gravure curve there, but will be updating that over the weeks as we’ve pulled out our own press in CEP this week and next. It will change dramatically.
Also, I can post a reflective-density-to-luminance spreadsheet up there too.