I've no axe to grind with anyone but part of RMCs' posting on 3rd November in reply to Gwyn reads:-
"4-Regarding your hypothetical slot situation, the pax were all off loaded in BLQ (after she had made up time on the MAN - BLQ sector) with only 10 mins left before she went into discretion."
Does that mean the whole of the return flight would have been in discretion? or that after say a forty minute turnround thirty minutes discretion would be needed to get the aircraft back.
I suspect the latter, but hopefully we may get clarification on this