Hey RONTOM,
I'd love to stay in touch about your progress. I've fallen foul of CAA and the CAD test and I'd love to work with like minded people to get some sort of overruling on the way they currently approach the testing. Maybe we can share email addresses etc?
I recently moved to Canada and out of curiosity checked the colour vision requirements. Here, you can do the Farnsworth D-15 Test (which I've passed) but also, they AME here told me 'you categorically don't have a colour vision deficiency' after i got 14/15 of the Ishihara plates correct. 14/15 would have me on CAD at the CAA...