If you buy queens, you can take a full hive and split into 3 easy if they are booming. I have done that. But I run all deeps for brood. I assume you have all drawn out frames from your hives before. Drawn wax just helps new bees out so.
This hive has always been pretty strong - I've had them since I started and they seem to have a handle on superseding without any guidance from me.
I was considering buying queens, and I'll keep thinking that one over.
The "booming" was part of why I was thinking of waiting till about mid-may - they're usually full and bearding by then.
I don't have many full frames of drawn wax, but I could see the advantage. (the other two hives have been vacant since before last year - with no place to freeze or refrigerate old combs - so I had to clean them out.
I'll keep this in mind. - I had also seen someone comment elsewhere about just splitting them on-site, but blocking them in for 3 days (with ventilation) Is that just to commit the nurse bees to the queen they've gone to work on?