Central Maryland, NewBeek here. Second year hive. I Checkerboarded above the deep with 2 mediums in mid-march. Now the 2 mediums above are around 70% full. Think I should Checkerboard with a third medium and split up the third empty frames between the 3 med supers? OR just throw the empty med right above the bottom deep. Hoping to avoid swarm as they are busrting at the seams.