Jim is right about the Overland 36s. I have two, and they’re basically as good as the PSC 2002 ones. Same builder, same design, but PSC updated the details a bit, and offered all 10 factory painted. The Overland models are all bare brass, and do carry some late DRGW/C&T details such as hangers for more modern retail frogs. But great locos nonetheless.
I have just received a box of custom made steel worms for these MSM models, not opened it yet. I will be trying one out later today, in a C21 that has worn the worm out. Note that they do take more than20 hours, more like 100 to wear out. And the idler gear is undamaged in this model.
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, so please excuse the typos.