Hey Mo, they gett'in enough light? If I recall you were putting artificial lights on them..14hours+ a day? Good feed and water? A little oyster shell? Dust bath? They could just be on strike like you are saying, but thought I'd through a couple ideas to ya...you are pretty much on top of your birds though...a refreshing change
Side note...talked to your neighbor yesterday, they got a great set of battery cages, so within a month or so you should have some new quail in your neighborhood!