recently replaced some brake lines and in the process of bleeding them I realised they were binding (or to be precise were well and truly bound!). finally managed to get a stupid wind back tool online (which is made of chocolate and is fecked already!) but as I bolloxed up finding the thread on one piston I managed to pull it out and needed to re-bleed them. So pistons wound in, pads and discs refitted, lots of clearance, sliders, pads and calipers all move around no probelm and I re-bleed. binding. badly! what the f@$% is happening here! exact same brakes and pads that came off going back on. nothing changed other than a bleed. something I am missing here?