After a lot of going round and round in circles and getting dizzy, couplings!
And the Ommr is almost there, too, aside from the stupid wheels rotating on completely the wrong axis, so I must sort that... can't remember what I did to sort it out on the SSyms! I'll come at it again with fresh eyes again another time.
Normal maps being redone for both wagons tomorrow. Small sound issues on the Ommr and minor mapping adjustments on the SSyms and we'll almost be ready to go.
I've figured out (sort of...) a nice way of scripting the loads, to minimise the number of variants of each wagon that will appear in the list - only one, despite the numerous different loads for each. Hopefully I can put it into practice but I've worked out the principle in my head!