Or just to keep 2 accounts per ring - one active with F20 and one dormant (even not on a device) with P10. Once your gift list change, you delete your game, install a new one, advance to lvl3 and ask GI to restore on it the dormant game (which should be now with F20). So you have again one active game and one dormant with P10 You have only to keep note with your two friend codes: the one of the active game and the one of the dormant game - and to change it accordingly.If they changed all fuel accounts back again then that's going to suck for anyone in fuel rings
If they're trying to kill fuel rings then I'll have to think long and hard about playing anymore