Re: commercial hive bodies
If I were to start over I would stay with 10 frame deeps for the brood nest primarily because a double splits down into two nice sized units with enough room to grow and still accommodate an inside feeder. While story and a halfs make a nice sized pollination unit a medium is just too small to hold a nuc for very long. For extracting supers, however I think I would go from a 6 5/8" up to the 7 5/8" size. A little more capacity without getting too heavy to handle. I like to draw out some deeps each year as extracting supers and then rotate them down to be used in a brood chamber. Once they become brood combs they are no longer used as honey supers.
"Ve are too soon olt und too late schmart."- A nameless German philosopher