When you say that the Sophisticated Finishes stuff is too textured for HO, do you mean the pitting and other effects don't fit the car? Is it too "big" for the scale, I guess I'm asking. I'm new to N scale and I'm curious what I'll have to go for with rust on some covered hoppers, so if the Sophisticated Finishes won't work with HO, I'm assuming N scale is out of the question.