What I do is more like swarm prevention, but you end up with 2 queens in a hive and a lot of bees/honey. In April reverse hive bodies (if needed) and add a QE with 3 or 4 supers. Russian bees whether they are pure or hybrid tend to build and swarm early. In late April / early May do very quick inspections for swarm cells about every 3 days. Once charged swarm cups are seen its time to remove the queen (its good to have them marked). Place the queen with 2 frames of brood (with no swarm cells!), 1 honey, 1 pollen, and the rest foundation or drawn comb if you have it in a new brood box. Replace the frames in the now queen less colony. Place another QE on top of the supers and put the old queen on top of that with a 3/4 hole just below the hand hold.
So now you have from the bottom - 2 queen less deeps with swarm cells (or a graft) a QE, 4 supers, QE, and a deep hive body with the old queen. About 5 days after the set up you can knock down all but 2 or 3 of largest swarm cells. 2 or 3 weeks later you will have a new laying queen in the lower brood boxes and the old queen up top laying. At this point you can add more supers and make a nuc with the old queen or kill her if you don't want more hives.
The drawbacks are the hives can get tall and heavy. It requires frequent inspections until you get the hang of it. Harder to do with out yards, put possible. I have one small out yard. On the plus side you get ohs and ahs from other beekeepers when the see towering hives, it keeps the dust off of the extractor, you can make up nucs and raise queens.