Was reading another thread and seen the mention of it, so am curious. why would anyone want to go with a TBH, instead of for instance a horizontal langstroth? IE the typical dimensions of a langstroth, except instead of building hive box on top of hive boxe, instead build as a trough like a TBH does. One would have frames, which we should all agree supports the comb better, helps prevent them attaching comb to the sides/etc. one would not have to lift full heavy chambers, so gains the benefit of a TBH, doesn't have to disturb a whole chamber doing inspections/etc,etc.
I imagine one could even build these at sort of a angle, also which I cannot help but think the bees would like personally.