> I might be being cynical, but if FCC (or whoever) was to announce that
> they were to do exactly that and that there would therefore be no more
> overtime, I suspect they would have a dispute on their hands over that
> as well.

Equally, in times of industrial unrest an overtime ban (or refusal to
offer overtime) is often used to prevent workers from making up their
pay packets for other days they've refused to work.  It certainly
compounded the Arriva/Northern Spirit action a few years ago.