I did not realize they stayed open vs. the nuc box being closed with ventilation. I assume the setup is the same in regards to setting it up and walking away for a few hours, then grafting. Can I set them right next to the original hive with out them abandoning the cell starter? Will it work fine with medium boxes? Can I return it to the mother hive above an excluder and below supers (with some open brood added)? Is the cell building time frame still 48 hrs before you move it to the finisher? Thanks this is very helpful.