Torture testing track joints with the tiniest wheels I have available.
Not surprisingly, the 0-4-0 tank engine splutters a bit thru the long Peco frogs, but it does much better than on the long Atlas turnouts I started with.
The short guy won't likely see much action on this layout, so I'm not too worried about it.
Everything else works great, although the 4-4-0 helped find a couple of rough solder joints.
Lee