Over the last two days I've been having clutch issues again. Pedal would feel fine, but if it was held to the floor for a while then it would stay there. Once pulled back up it was fine again.
Only thing this could mean is a leak somewhere. Finally had some time tonight to have a good look at the car and it turned out to be the master cylinder. It suffered a hairline crack on the outlet port which allowed fluid to leak past the seal.
Fitted a new one and I'm happy once again.
Still got a load of other stuff to get done on the car, but I'm way to busy at the moment.