I agree with the SXS being needed in a lash up configuration, maybe MTH will give it some thought? It does seem odd to me that they left that one out?
Just a FWIW, but I saw a 44 tonner at my LHS yesterday and that was one impressive item. I couldn't believe how heavy it was, nice! It also sounded really good, I talked the owner into a demo on the store's test track.