I have also been refining the North British tank loco design to the point where I've now resolved all the issues that would present a problem with the design in real life and I'm ready to get it etched (well, once all the changes are accounted for on my etch sheet drawing I am).
I'm really pleased with the result and am looking forward to getting it done. This will be one of my main projects after Narrow Gauge South. I also have Easter weekend pencilled in for loft clearance with the assistance of my fiancée which means it might get done this time!