Am starting to wonder... All my hives have been from BetterBee, and I have never had problems with bees building burr comb under the inner covers. My friend bought hive bodies from Brushy Mtn and twice now her bees have filled the space between the inner cover and the frame tops with burr comb. She bought all her equipment from BetterBee except the actual deep bodies, which were out of stock, so she got those from Brushy Mtn. The inner cover came from Better Bee, is the same on both sides, and has a slight recess. Like the ones I have. Are Brushy MTN inner covers flat on one side with no recess, or what? Can someone tell me who has them? Trying to solve the obvious bee space problem she is having.