I'll second the #3 above...but only inasmuch as the MU section still needs something to accomodate half-height modules. And yes, even though COTK has a different idea of what MU half-height is, I would figure a "generic" half-height row measurement would work in the same way the 1U tile rows work in Eurorack for both normal and Intellijel format. But at this point where Moon and COTK are both heavily into this size format and there's others inching into it as well, it would seem like something that needs accomodating. A similar situation exists in the Buchla universe with the H series modules plus the 1U "ModuleModules" that Eardrill's got, but that seems more difficult to fix given that each module slot can have either two H-series or four ModuleModules, and this isn't a per-row thing.