I have read a lot about using drone brood to control mites, but am unsure how to do it with foundationless frames. I understand there is drone foundation available that can be used to create drones which then attract mites. Will bees create discrete drone brood cells on foundationless frames? Will the cells be sufficiently isolated and compact to allow uncapping and freezing without harming nearby worker capped cells? Or do you have to use the drone foundation?