I'm beginning to understand more about this system of manaagement ( and will order Snelgrave's book soon) but I still have questions:

How does the use of three deeps eliminate supplemental feedings of syrup and pollen, and yet produce more honey? Do you use any shallow supers, or just deeps?

Why does a queen excluder reduce the amount of brood? Doesn't the queen just stay in the available deeps, and lay the same number of eggs?

If you leave three deeps on during the winter, can the cluster produce enough heat to survive in the larger area?

And, on a completely different topic, what is the difference between this board and the BeeData Bulletin Board?

Thanks to the many beekeepers who've provided detailed answers to my questions!