"SP: I don't know; I haven't seen any numbers. What did Attorney Friend say was the County default number?"
The default is calculated by a software program called "Dissomaster" and the inputs to the program are a bunch of financial numbers such as your income, her income, certain essential expenses, taxes withheld, etc. It's not something you or she can simply pull out of a hat. And in some states if you've been married over a certain # of years (typically 10) its for an indefinite period of time as long as there is a significant income differential and the recipient does not re-marry. There, that's your final answer! No need of hemming or hawing.