TurboPrint & PrintFab

I’m stymied as to why some printer profiles work when printing using TurboPrint in Linux, and others don’t. Basics: My printer is a Canon Pixma Pro 100, using Turbo Print 2.30-1. I save 8-bit TIFFs from RawTherapee (in s-rgb format) and print from Gimp 2.8.4, using its TurboPrint function. [I’d like...