Nice find, lougord99.

Now who can find the post, here or on blogsouthwest.com, I would guess, that talks about how the schedule optimization got to the point that WN flight numbers had to expand up into the 8000s, and how lots of system testing had to be done before they could proceed with that change? It seemed to me that post could also be instructive to the OP, but I've not been able to find it.

curb, where are you???