Have pretty strong hive with 2 deeps. 8 of 10 frames in top box have larvae and capped brood- ranging from 50% to 95% filled. Bottom deep still has 5 empty frames with some capped brood and pollen. Bees everywhere.... Just added queen excluder and medium super. This super has fully drawn comb. When should I add another super to this? My next super has foundation only and no comb whatsoever!! and figure it will take them some time to draw out new comb.