Snas:
I agree. If Unite is foolish enough to argue that staff travel is contractual, and heaven help them if they do win in court, the tax man cometh.
…and to take this train of thought a bit further, were ST to become a taxable benefit in kind, then any undeclared post boarding upgrade from WT to Club for example could be tax evasion? – oh what a can of worms, potentially, and what a horrible legacy left for CC to not enjoy for years after should it come to pass.