Well, after that NIGHTMARE i had with the brakes on my cabriolet, the car has been for the MOT and has passed first time, i thought they might fail the pedal travel (and i did have a little play with the nut in the servo), but it all passed. So theres no way there can be air in the system, heres the results:

N/S O/S

F 250 250
R 120 120
H/B 120 120

all good readings, and all equal, so this must conclude that the standard Escort/Orion master cylinders arent quite up to the job of the big brakes. The tester did make a comment that the front wheels were a tiny bit tight which im sure is where ive adjusted that nut, so ill be undoing that again dont want the brakes catching fire.

Even with the standard brakes though the pedal felt crap compared to my orion (brakes come on as soon as the pedal is touched), but the cabriolet always had a bit of travel, and the master cylinder was changed aswell, has anyone ever known the compensators to play up and/or break (not the load apportioning valves) the ones under the bonnet.