I've got a new blog entry entitled "Five ways to mess up a profile testchart".
Edmund Ronald's Color Management News: 5 Ways to mess up profiling testcharts
I think this should be required reading for the nice people at Apple, Adobe and Epson ...
The previous blog entry, entitled "Camera Profiles as Raw Emulsions" may also be of interest to members of this forum.
Edmund Ronald's Color Management News: Camera Profiles as Raw Emulsions
Edmund