Holy Crap. Now I'm getting personalized help from Andrew Rodney and Jeff Schewe? I am sincerely and humbly thankful for your help, guys. I have learned so much elsewhere from your words and ideas--in books, in software, in manuals, in magazines, online all over, in forums, and so on. And of course I benefit from the work you've done (I'm a happy PixelGenius customer, and, of course, a happy Photoshop customer).
Anyway, I don't mean to put down the company worker who made the profile for me: he has been a real gentleman, generous with his time and help in following up on this problem. And he seems to have solved it now. (I attach his latest effort, a new version of the same profile from the same targets). This version shows up in Photoshop, and I'm trying some prints with it now.
Many thanks to this forum and its excellent senior members,