I had to rebuild my Boxcab, the initial design just didnt work well on my R1’s, plus it was just plain weak pulling wise. The porches tended to cause problems operationally, the lead porch liked to derail on switch points. Original build
It also had size issues, I need to keep engines on the short side, so I removed the FA-1 brick and the porches, actually I rebuild portions of the porches under the body and used 2 Aristo Centercab bricks, the results:
While maybe not a sexy as the first model, its a much better performer, heavy and powerful, with a proven power train that will pull stumps out.