I've had my new packages in hives for a week and a day now. They are in 8 frame medium size boxes. When I checked them yesterday they had about 5 frames drawn out in each hive. I don't plan to check on them again until about 9 days from now, however I'm thinking that if it took them only a week to draw out that many frames, I will be having to put another box on sooner than 9 days. When should I add on?