First off I would have did a true split instead of a making a nuc if I was worried about the colony swarming.
A true split is taking half the bees, in my case one of the deeps and setting it on a double screen board, use a cloak board if you want them to make their own queen and just the screen board if you add a queen form a nuc or buy one.
But with what you did I would probably cut away a bunch of the cells but I seem to always miss a few.
Al
