Ps

The problem I might have is that I have used a cable still and it goes into an adaptor that in turn pulls the master cylinder, and the pedal has an auto ratchet, so I probably cant trivially adjust it as its self adjusting when its cold then over adjusted when hot.

On another car Ive moved the master cylinder right over to the pedal and used it directly though, so i guess I will have to take the pedal box out and do the same, huge ballache though and this car is only meant to be a cheap and cheerful backup car for when the proper one isnt ready, dont want to waste too much time on it, might just get in habbit of releasing the pressure between sessions for now!

Or I could just do not quite as good a job of bleeding it actually, and then there would be some air to compress, I think thats why it used to be fine before I had engine out and back in as I was a lot more thorough bleeding it this time!