How gratifying to discover that you are abandoning the filioque. We did that some years ago, under Robert Runcie, when we decided (out of politeness to the Orthodox) to omit the clause whenever they were present. We saw it as a generous ecumenical gesture.
Mind you, they never included it when we visited them!
But I suppose that that is the way of ecumenism. All ecumenists are like vegetarians. You go to the trouble of making them a nut cutlet, but they never so much as grill you a pork chop.