2015-07-29 by tracy@...
OH... I knew I forgot something: kudo to Roy for not blindly assuming all curves are "master curves." I too had to swap a couple of cartridges around when the magenta head of my old 3800 lost a nozzle. So all my versions of Jon's curves have swapped positions in them.
The script Roy wrote handled them with aplomb.
Nice work, Roy. Thanks for that.