I think its possible that when you first pushed the pistons back it has blown a seal somewhere. I'm not sure where though but I'd guess its a the lever somewhere.
This strikes me as plausible. I need to play "spot the Royal Blood" tomorrow.
I've done this once before and blew the reservoir bladder/seal thingy at the lever.
I admire your perseverance with these brakes.
@TotalShanner started
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This strikes me as plausible. I need to play "spot the Royal Blood" tomorrow.