@audiomickI'm very clear on why the pressure needs to be handled, just don't understand why a line that is connected directly to the sump has to be part of it. My older Ducatis just had a black rubber hose that came from the top of the crankcase and was strapped to the frame under the seat. Maybe that system is ancient now, but it worked very simply. Why the oil line is part of this system now is what I question. I'll stop beating a dead horse.