One of the things I'd forgotten to tell you was when I'd last changed the brake fluid - which was March 2015 (same time as the rear suspension). I had an MOT advisory many years ago (early on during my ownership, so 10+ years ago) saying there was fluid visible near the rear drum back plate. I suspected a leaking cylinder and kept an eye on it, but saw nothing more and I have always been amazed that I've seldom needed to top up the brake fluid.
I have never changed the rear cylinders, but seeing as I had to change both front calipers and both sets of clutch cylinders during my ownership, I'm sure the rears are close to expiry. I also meant to look inside the drums - the brake pedal has always had a long initial travel. This (I think) was it taking up the slack in the rear shoes - if you gently pulled the hand brake on a couple of clicks while driving you'd get a lovely solid pedal feel.
I initially used to take this out on the rear adjusters, but despite following the recommended techniques in Haynes it would always fail the MOT on rear imbalance/bind. I gave up in the end and accepted there would be some initial travel! I bought the hub puller but that's as far as I got.
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