I have two questions pertaining to breeding;

First one is, I either saw on Ball Python Breeding DVD or read somewhere that "most" WC female will not produce in captivity. I'd like to know more about this and if WC includes the CH, farmed etc.

Next question is about racks. I'd love to have open air freedom breeders but, due to their higher price I don't see that happening anytime soon.
I was wondering what kind of sucesses were being had using the drawer system racks with sealed tops on vent holes poked in the tubs.

Thanks
Matthew