Heh... Toldja I didn't understand what you were saying.
There is one oil pickup. It isn't in the pic, but it is just above the half-circle cutout in the middle of the bottom, there.
If you look below the cam in that pic, you'll see a channel cast into the case. That's where the "windage tray" goes. The idea behind it is to keep the oil, which should almost all be in the sump below it, from getting whipped up into the rest of the case by the moving air coming off of the crank.
How far below the windage tray should the oil level be? I don't know. When the oil sloshes around, it could get over the tray and take some time to get back down again. Or it could get picked up by the air moving around in there. (Robs you of power, heats up the oil...)
If you're looking for some absolute "here is where the oil should be", I don't have it for you. I figure the VW engineers
probably had some reasonable idea what they were doing when they figured out how much oil to put in the motor, so I use the stock dipstick. Though they didn't necessarily know that we were gonna put wide sticky tires on the car and take it around long sweeping corners at high rates of speed. So then I trust the experience of those who came before me, who say "put in a half-quart over full".
Between that and the tuna can, I have no problems in any reasonable situations.
As with some of your previous questions, I think you're really over-thinking this. Use the tuna can or an accusump, put in an extra half-quart, and be happy. Don't worry about any of it unless you see the oil light come on.
--DD