jpsdad,
If warmouth have a much lower recruitment rate, that would explain two of the data points in your research. First, that they don't do well in ponds with lots of other panfish. Secondly, that they are less prone to stunting in small ponds.
If that is all true, then perhaps they would be a good choice to put in a small pond as the only predator species? (Even though that goes against our PB conventional wisdom?)
A family might be able to properly manage their small pond just by fishing. If they kept good catch records with relative weights, then they could know when to eat a few more warmouth, and when to do more catch and release.
I think warmouth would be an even better choice if they would take supplemental feed and you could grow them out a little faster.
jpsdad (and others): Anyone have any data on warmouth learning to take pellets?
RAH: I can't remember if you have any automatic feeders? (I think not.) Do you ever hand feed your fish? If so, have you tried any hand-feeding in your warmouth experiment?