Kirk - thanks, and I do in fact understand. I just never found 'that rule' that bugged me enough to not understand how others don't see it the same way before. Now I have. Just because I don't understand how you can't see it the same doesn't mean you have to.
Because both of these were Saturday afternoon projects to try something new. Like I said - take a look at the Rabbit. That is where I am headed with my setup, with a tray back to the wheel well openings that includes a diffuser. In the end I may end up deciding the direction based on other factors, like standing on a scale with both setups in hand, to see if the deletion of the facia panel with the big bumper makes up for the added weight of the setup. I already know that the big bumper has a negative impact on airflow over the oil cooler/radiator, which may suggest a bit less drag.
(BTW - Both are less than 1/4 inch above the rim - though the small bumper one ended the weekend 1/4 high on one side and 1/4 low on the other - it is just the perspective of the picture that makes the 2nd one look too low. Obviously the orange car has no restriction in that area.)
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