I now they have mini mating nucs and other mating boxes. I have a couple of the full size boxes dadoed to allow divider boards to slide in to make a 10 frame a 4 way mating nuc that holds 2 frames in each. So I decided to make a long mating nuc. Every other entrance is on other side and every other one on same side is one entrance hole is in lower section and other is in middle section. The hole that is on the top is a vent hole which is screened from inside. I did the different color strips over look the paint job I hate painting) to help each queen return to her correct mating nuc. Tell me my pros and cons for building this? Here is some pictures of it.