Tip - Oil Pickup Tube Height

JAndrea said
I was only going by what I read here, which seemed to make sense to me, since, if it was resting on the bottom of the pan, it would easily pick up any metal shavings/slag that might find its way to the bottom of the pan. But I haven't confirmed that anywhere else.

I think that depends on the design.
For example, a pickup tube with the guard on the bottom can rest on the pan.