My strategy is similar to Peter, we live only about 25 minutes apart. However our strategies are different to Dawns or Jacks because of our locations. I dare say that yours will differ also in time.
Even while manipulating brood frames, we see evidence of the bees opening up the brood by shifting the honey arc higher. Sometimes you’ll see a beautiful empty crescent with newly laid eggs in every empty cell.
My strategy is with only one brood box. I use a single honey super also with a hive mat & a migratory lid. If I find bees clustered in the lid doing nothing, that’s the time for me to act quickly & do a preemptive swarm control split. A lot of times I’ll act if I see that every honey frame is completely covered with bees because when you see that, bees in the lid doing nothing is only a few days away.