Thank you Flower Planter! So I'll paste this in from your Michael Bush link for context of other readers, "Opening the broodnest
This, of course is what we want to do. What we need to do is interrupt the chain of events. The easiest way is to keep the brood nest open. If you keep the brood nest from backfilling and if you occupy all those unemployed nurse bees then you can change their mind. If you catch it before they start queen cells, you can put some empty frames in the brood nest. Yes, empty. No foundation. Nothing. Just an empty frame. Just one here and there with two frames of brood between. In other words, you can do something like: BBEBBEBBEB where B is brood comb and E is an empty frame. How many you insert depends on how strong the cluster is. They have to fill all those gaps with bees. The gaps fill with the unemployed nurse bees who begin festooning and building comb. The queen will find the new comb and about the time they get about ¼" deep, the queen will lay in them. You have now "opened up the brood nest". In one step you have occupied the bees that were preparing to swarm with wax production followed by nursing, you've expanded the brood nest, and you've given the queen a place to lay. If you don't have room to put the empty combs in, then add another brood box and move some brood combs up to that box to make the room to add some to the brood nest. In other words, then the top box would probably be something like EEEBBBEEEE and the bottom one BBEBBEBBEB. The other upside is I get good natural sized brood comb."
Here's my question... I added my empty box below the brood nest. I've heard elsewhere that you want to add room above the brood nest and that's what MB says here too. Should I "open the brood nest" by doing the above and moving that box above the brood nest? Or can I open the brood nest and populate the new box below the brood nest from brood frames acquired by opening above?
Short version: Does it matter whether the new box goes above or below the brood nest so long as the new box gets a few frames of brood comb?