Guys,
You are missing a very critical point!!.
Your Spectrolux or any other test that you may pass elsewhere is worthless if the CAA Medics get their way.
They want to introduce the CAD Test at every medical with no grandfather rights under the pretext of using it to look for other underlying medical conditions.
Anyone who has obtained a medical stands to potentially lose it at their next medical - remember that colour vision can be affected temporarily by many factors - I have already discussed this with working CPLs in the UK who have stated quite unequivocally that they intend to sue if their medical is revoked.
Do these people at the CAA have no shame whatsoever? They will do anything to feather their own nest, at the cost of God knows how many jobs. Even if one person loses his job that is unforgiveable and I could not even begin to express my contempt should that be the case.