Hi Beav, good to see you off the nest and back in action.
I have been saying for a while, that a engine that leaks oil from all points, has a breather problem.
A point that I have identified, as a cause of blockage, is where the two cam cover breathers run back to the bottom of the air box, attached to the throttle bodies. These connect to a tube that runs from one side to the other, that is not open to the box, but they are connected through a small 1/4" orifice to another hose, on the RDS, that connects to the air delivery pipe.
This small hole blocks easely to seal the crankcase off from the intake pipe. When this is blocked it leaves the PCV valve as the only path for crankcase pressure to escape, and when the pedal is down the valve is closed, and the crankcase is sealed when the blow past is at its greatest. Oil leaks fom every seal and gasket.
Harvey