For someone in Cambs/Herts you take a mighty interest in the (individual!) tax situation of your German colleagues. I hope you attack the current (lousy) pay offer with the same vigor!
Again, don't let
jealousy cloud your (socialist) vision...
p.s. I hope you don't claim tax relief for your BALPA membership because you might be regarded as a tax cheater by your own standards! Just pay up! Or are you perhaps not a member?