Mklangelo, Good question.
If you add a super (That doesn't have comb drawn) right before the big flow the queen will hardly lay 3 deep hives high. (I have 2 deep brood boxes, and then I use one 1 deep for a super) Plus, the queen slows WAY down during the flow due to the fact that the bees want to get ready for winter. Also, I keep my hives relatively populated. I keep them plump with bees, but this also can be tricky business. I have to watch carefully for swarms. But keeping the hives plump keeps the queen from laying like a madman. (Or madwomen?)
Anyways, hope it answered your question.
Jake