[Lupdiesel]

I believe there should be very little to NO oil passing through the the AOS into the Intake. IMO, I think the factory AOS is to small to handle these engines. Look at the people that install the Motorsports AOS. It's bigger than the factory AOS and I've seen them report a diminish in smoke on start.
I think the AOS is a poor design due to the fact it passes through so much oil from know good units. I think Porsche knows this and just calls it "normal" instead of having fixing the problem. Maybe the Motorsports AOS was a fix. Just think of how much money it would cost Porsche to recall or admit a bad part. Instead it's easier/cheaper for the Porsche dealer to tell you it's "normal".

I'd be courious to see how much, if any, oil passes through the Motorsports AOS..

I worked at a Chevy and Ponitac dealer. When GM didn't have a fix for something yet... tell the customer it's Normal....