In response to using top bars to make them TBH style a few questions back...
I dont do tbh.. but I do foundationless.. Even in a 5 frame nuc the bees WANT to build their comb at an angle across the frames. 90% of the cutouts i have done where they had enough room to do so, they built comb at an angle to the enclosure. So using some means of guiding them is beneficial. Once they get started you can remove whatever you used as a guide. I use plastic frames. Two per nuc. Once they get everything in correct alignment I pull the plastic... Having never done top bar I am not sure what you all use for this purpose, but could quite easily see the top bars being dropped into these nucs... Hope to play with a tbh or two in the future, but still have several hundred hives to get built and colonized. If you try it, let us know how it works out???