6a 5th yr 9 colonies inc. 2 resource hives
Not sure if this helps but, I use a 2 queen resource hive and chose to stack 3 boxes high side by side to avoid any co-mingling. They are still side by side for warmth. Had heard of sharing supers and such but also heard stories of queens getting access and becoming one colony. So far so good. I over wintered 1 by itself last year and this year it will be 2 colonies. I did build 2 long skinny screened feeding shims for emergency feed like a vivaldi board but nuc size with a quilt box overhead to vent moisture.