[douglas bray]

I've always just used brake fluid on the seals before I push in brake pistons....Did this with my 930 Brembo's too. Now that you've got them half way in you may need to squirt a little in through the bleeder ports or supply line. You could always hit the supply port with a burst of compressed air to get the pistons back out. Put zip ties on the ones you don't want to go flying across the room.