I did some more reading and from what I gather, once you have your VE table perfectly dialed in stock/closed loop mode you can then set your calibration to run in open loop full-time. When you do this the computer refers to the open loop AFR tables and extrapolates fueling based on the assumption your VE table is perfect and = 14.7 AFR. Which if you think about it is pretty handy they did it that way.
Check out the pdf I attached. In it the author says what he did is scrapped the EGR valve, set EGR fueling modifiers to 0 and set the EGR timing modifier map to duplicate the extra timing the old TBI highway mode did. By monkeying with the EGR qualifiers you could set it add the extra timing only when at a steady high-map cruise with the engine at full operating temp. A neat work-around I would like to try!
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