Thanks for that, it is on the DLS, called Banked Consists. Some interesting results though. My J-Class banked perfectly, just like prototype track, the countrylink layed over like a high speed train, the 1460-Class did nothing at all and just for curiosity the built in BR Class 40 leaned to the outside of the curve in what you would call a rather 'brown trouser' sort of style. None of the rolling stock seemed to do anything at all. So far it seems to only work on locos.