I worked a couple of hive today. One didn't have a lot, I took a little. The other hive had lots. There hive has a single deep, 4 mediums all ten frames. They were all full with brood, capped and some un capped honey. I took 2 supers, the others had some brood or uncapped honey. I try not to take uncapped honey and I try to leave them plenty. Last year I didn't take any. I would say to take what you think they can do with out. And if the flow is still going good you can take more. Down here I think people have one extraction now, possibly a little earlier and another in July. Then leave the rest for the bees to winter on. Good Luck
Joe