Yeah, Perry, I did open the reducer a bit today. I was thinking that I might ought to take it off altogether. I just don't want my main hive in the back yard to start harassing them. This split is only three weeks old, but they seem to be getting pretty strong. They went from three brood frames & two empty foundations to five jam packed frames in two weeks. I had to add another nuc box to the top last weekend because I don't have their new home quite finished, yet.They look good. Maybe remove that entrance reducer if they are strong enough and it's that hot?