Plus it occured to me that I need to seriously emphasize the main story problem. As soon as I find it. "Ericka is dirt poor" well, she's solved that, and as a story problem it's pretty weak. "Ericka kills her brother." Tempting, but Tyrone has parts in several books yet unpublished. "A bunch of dirt poor lazy 'farmers' become magic . . . and are too lazy to get trained enough to be effective" doesn't really work.
Feel free to make suggestions.