WOW. I don't know where beepro gets all his ideas, but I won't be following many of them.
Rockink, if there are more than one frame with capped queen cells, and you can find the queen in the other half, kill her and add a frame with queen cells in that half. That leaves you with two halves with new queens emerging and "hopefully" mating with gentle drones and giving you two gentle hives. The broodless time will also reduce the numbers in each hive, which will help to gentle them down.
Alternatively, only one frame has queen cells. Gently cut one or two cells and move them to a frame in the queenrite half after dispatching her.
Alternatively, if you can't find her, wait until the requeened half has brood, then repeat the whole procedure with another split.