I realize this might be a little early for this question but here goes anyway. In the spring when you checkerboard a hive, reading between the lines of post here, you use drawn comb. What if you don't have drawn comb? I tried using foundation and the bees just extended the combs, in the area where there was no brood, on either side of the foundation and man what a mess I had. I use only 8 frame medium boxes with 3 boxes as the brood area. Do you checkerboard any boxes above there? There seems to always be brood in the 4th box