The bottom line is there is no way to set the OOB up to display "logically" and still maintain an evolving OOB. As Andy says if the unitclass on the first unit differs that can change how it displays in the game and it will never be attempted in the offical OOB's because formation placement is tied to hard coded AI picks.
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"You are never to old to rock and roll if you are too young to die".--- What do you expect to be doing when you are 80?
Yeah, that's what I figured out...I can't really reorder formations in the purchase screen by changing formation's first unit, so it looks like I've got to work with what I've got. Thanks for the tips.