I've done some searching on reversing and it seems to apply to late winter/spring. I don't see any references to fall reversing. However, in one my hives, the lower brood chamber is now empty ... completely. Not an egg, not a drop of honey, no pollen. 100% empty. Does it make sense to go ahead and pull that bottom box and put it on top, giving them some additional space to store honey (I am feeding and they are actively taking it).