>>8000451I have toys from both series so I'm sure. The width of that ER one is 7mm (red brackets in your pic) while TR is 9mm.
Haven't tried your pin idea. Note that the part of Ironworks you cropped is only the female half of the connector and these half-connectors only appear on parts of Ironworks in the whole of Earthrise so far. You can't physically slot the full ER connector into the middle of the TR one (red brackets).
