I have no idea as to what the capabilities of Proofmaster Mezzo are, color management or otherwise. They could be awesome and you need read the part of the manual that explains how to measure a target and modify the color tables / ICC profile to adjust how the printer will print...
Originally Posted by Lutzie32
you are expert in all the above and the software is not up for the job.
When I worked for Compose ( don't work for them anymore, work for SmartSoft ) - we sold a product that took the riped 1 bit tiff file that you would make you plates with and color managed that to print on the Epson.
Compose Color Blog: With Star Proof 6 spot color matching is a breeze
Customers liked it, and most used it to do their G7 certification.
I am no longer involved with the process, this application or company, but it was a great solution. Sorry I can't be of more help and best of luck...
Michael Jahn - Slightly used PDF Evangelist
Simi Valley California