I caught 2 swarms this spring and put them each in a 10 frame deep. When I checked them today all 10 frames were completely full in both hives. Here in E Tennessee we are about to head into a summer dearth. I was wondering if I should add a second box at this stage? I am afraid they won't have the resources to build comb in the second box but they are so packed out I'm not sure what to do.