I've been beekeeping in Wisconsin for a couple of years, and one question I have always had is what the best way is to reduce the hive to the desired two large brood boxes for winter. Right before honey harvest time in August or September, my strong hive might have 4-5 shallow supers above the two brood boxes, and all the boxes have lots of bees. When I take the supers off to extract the honey, I replace at most one empty shallow, just for space, as typically the honey flow is over and they won't be filling it. There is plenty of honey in the two deeps for winter. When I pull off all those supers the bees are forced to crowd into the remaining space. I took a look today, hoping to remove the last shallow and squeeze down to just the two deeps, but the hive is amazingly packed with bees. Is this a bad thing--should I leave empty super(s) on just for the bees to hang out on? Or is it okay to crowd any number of bees into two deeps, and if there are too many bees the surplus will just leave on their own? I assume having some leave would be better anyway, so as not to consume the honey so fast.