My question is, would it be a good idea to use a couple of frames of the old honey in each of the so-so and lazy hives' honey supers, in order to coax them up?
Old honey can be get to circulation, if you uncap comps and put the frame in the middle of larva frames.
If you put old honey to supers, bees will recap the honey.
Lazy bees? There is some reason for that? Some hive is eager than another. First thing is change the queen.
Bees can turn lazy if they have not enouhg empty space, or more usual, they are going to swarm.
If you have same size hives, another bring 120 kg honey and another 60 kg.