Good to see you on here David, I think your kits have a lot to offer in all the scales.
They let your imagination run riot with industrial type wagons, and allow you to make a rake of wagons rather than an isolated example, which is much more prototypical.
I shall be making more of the 4ton minerals of varying versions - end door, side door, rounded end planks etc.
They also allow you to use outdated detail parts like safety chains, dodgy brake gear.
Gauge 3 is a bit of a niche area of railway modeling, because it doesn't lend itself to "indoor" layouts, but using light railways/industrial prototype, all becomes possible - I'm afraid Pacifics and long shiny express trains leave me cold.
Richard