I was thinking about this. If the fluid was exactly the same we could compare areas of the discharge restrictions with the feed restriction. But that's not the case, even with the high position, additional air and pressure comes in at the top of the transfer slot.

Low position should be more consistant, so not encouraging a change to high.* Just curious as I was thinking about this.
*Summary and background of why low position is almost always better for us is posted here: Idle Jet Position