I am curious as to just how "soft" you brass sheet has become? Just because the cab metal is softened, doesn't mean it won't be able to withstand the handling which our models receive. I've seen some very nice models that use quite thin sections of brass on the superstructure, and that was more of a problem than relative hardness. In fact, brass is it's annealed state is easier to bend to contours than it is if hardened! For complex shapes I've sometimes had to anneal pieces several times before they attained the desired shape. While I agree that silver soldering is not necessary on superstructures, I wouldn't chuck you cab into the garbage because it's a little soft! At least in it's softened state, if you get a dent in the cab, it will be easy to knock back out! Keith Taylor Jefferson, Maine USA