The Council are only playing by the rules asking for a lodgement and suing for costs and it would be rather incredulous to suggest that the key personnel in PPAG did not know what they were getting into when they went to court.
PPAG, even at this late stage, is still spouting the same old factually incorrect garbage and has disagreed with everybody from the initial firm of Consultants to Judge Dorian and all else inbetween. Their track record to date suggests they are unlikely to produce an objective focus on the strength of their appeal so a withdrawal will be the furthest thing on their one track minds and would only ever be done as a last, last, last resort. They do not care about the wants of most Portobello citizens and don't even have the sense to withdraw and claim a 'moral' victory by saying that the big nasty Council bullied them into withdrawing because the Council had a lot more money.
I hope the Council, whom in my opinion have been outstanding at every juncture throughout this very lengthy process, squeeze the lot of them until the pips squeak!

Justice delayed is justice denied.