Here's an Aster 1/32nd Mikado pulling a bunch of 1/29th Aristocraft heavyweights. It was quite a common sight around live steamer meets. The PRR coaches behind are also 1/29th, but the hoppers are 1/32nd.
Timely, a train buddy just visited (in the cold rain, we are tough) to pose his 1/32 box car behind my 1/29 Aristo RS 3. I looked acceptable to him, as the RS 3 scales slightly smaller then it should be.
No photos taken due to the miserable weather, but I do have this showing my 1/29 WM RS-3 and 1/29 tanker and a string of PIKO allegedly 1/32 coal hoppers. Enjoy....?