My bees were doing some bearding in the afternoon into late night due to their hive probably being stuffy and hot. I read on the forums here to set the supers back just a tiny bit to get a little more ventilation through the boxes. They're not back far enough for bees to go in and out, but enough for some hot air to escape.
Well, they don't seem to dig that idea very much, and have been diligently filling up the cracks with propolis. Should I just put the supers back to on top of eachother, since the vent-cracks will be filled up anyway?