I tested the PFC in a car that Jones_gtir had kicking around and it worked fine. As his was a non mover I could then Swap bits around at my lesiure.
At the moment the CAS is on loan until I can either source another or he decides to scrap the car.
Logically, the old CAS should work but I can't be bothered trying to work it out anymore and will focus on a growing jobs list of things to fettle.
Jim