Small Block Oil Pick Up Tube Question

I always thought that having two pickups was ridiculous.
It doesn't switch the flow from one to the other tube depending on which one is in oil.
The pickup tube that isn't will just suck air, and the one in oil will quit pulling oil even if it is still in oil.

Put two straws on your mouth (one in each corner) and suck up a little water with both straws at the same time.
There will be less resistance because you have two straws and double the volume.
Now put only one of the straws in the water and the other out of the water and see what you get.

Air.

Same with two pickups, so you can actually oil starve the motor by trying to double the volume of oil by using two pickups because they won't both always be in the oil all the time unless they are right together in the bottom of the pan.
THEN you have a pump that only pumps a set amount of GPM anyway and that is actually more of a limitation than a single pickup tube.