I'm hoping the free blade plug will be a nice one (but have gotten two generic ones with my order)… figure I might be able to swap either the emitter from the Dark Apprentice LEv5 or whatever I get from the freeinitiate or mysterybox, so the saber still glows....
will probably eventually try to figure out how to rewire the diamond card to support the second blade separately from the main.
Dark Apprentice v5's don't have MHS comptabile emitters though (unless you meant the pommel, then i'm sorry for the misunderstanding). Depending on the MB saber that you get, it might be possible if that emitter is MHS compatible.
From my experience, would suggest just blade-plugging the side that you aren't using, as suggested earlier! It still looks really nice even with only one blade in.