Thanks for the info about the good Dr Pape in Australia. He was very helpful in his reply but does not have the time or money for a long case in The Hague.
The only way to get the regulations changed is by taking the matter to the European court of human rights on the grounds that us "black and white" viewers are being denied our chosen career when there is no scientific evidence that the Ishihara or holmes-wright tests give an accurate or fair appraisal of one's ability to differentiate navigation lights or interprate EFIS displays.
The CAA/JAA will not accept a SODA (statement of demonstrated ability test)which the USA, Australia etc do, which is the only fair and accurate assessement of one's ability. I would happily fly around with a CAA inspector spotting nav lights or lights from the tower to prove my ability.
Any court case would have "experts" warning of mid-air collisions between airliners driven by colour defficient pilots, and be difficult to win. This is nonsense as many US, Canadian, Australian etc airliners fly into Heathrow and over europe every day with pilots who cannot pass the Holmes-Wright test.
Perhaps AOPA or a similar body could help fight the case as no individual could afford the legal costs.