i had problems no end with clutches in mine..Damian knows the history i have had.
i am gonna write what happened to mine so maybe someone might pick up on something from my story that could be done/missed out on Damains

first of all mine also, like Damians is T3, 803s, 3bar, 26psi etc etc. but mines a 4x4. The clutch that was in my car when i got it started to slip so i had to change it. i bought a motorcraft one, bought a new cable, fork arm, trumpet and had my flywheel skimmed. That slipped instantly. I ran it for a few months but it never got any better. So i sent it back to ford on a faulty unit but they wouldnt take it back as the car aint standard. So believing that clutch was nack'd i bought another motorcraft one, low and behold....slip! so eventually, i bought a AP fast road organic clutch, same as what Damian has bought. When the gearbox was out i noticed on my flywheel that as the old clutch was slipping, it had left friction on the face of it. however it had only been skimmed 500 mile previous so the AP went in. it grips like hell and has not slipped once.

I hope there is somethin simple on it Day!!