Re: From deeps to mediums
I set a medium on top of the deep. I removed a central frame from the medium, replacing it with a deep that hung down into the deep below. The bees built comb on the bottom of that deep frame, under the bottom bar. When the bees had built most of the comb in the medium with some brood in it, I removed the deep frame, cut off the bottom wild comb and tied that comb into a medium frame, and put in the medium box, moving the deep frame back down into the bottom deep. I found the queen and put her into the medium and put a queen excluder between the deep and the medium. I then put another medium on top, checker boarding a couple frames to draw the bees up. In 3 to 4 weeks the bottom was empty and I removed it.
You could then add another medium to your hive and have a 3 box stack. When it's built out then split off a box and add another medium to make splits.
20+ years, raise my own queens, feed when needed, I treat but have not perfected varroa management yet.