1st Feb is a Friday and you must give 3 clear "working days" notice, that puts a notice served on Friday the 1st for action as of one minute past midnight Thursday morning the 7th Feb.
As far as any "creative pay deals" don't hold your breath. There is only one way we are going to advance our claims and that is through action.
Members must not fall into a false sense of security, we are no closer now than we were two weeks ago. Steel yourselves.