I don’t know anybody in the hobby who hasn’t had an occasion when things didn’t go quite as expected. Yes, when this happens it can be infuriating, sometimes possibly temporarily soul destroying. However, we tend to become inventive to find a solution that works for us. Sometimes these can be incredibly simply and obvious we later wonder why it took so long to address.
The big board has the most point motors. Going against conventional wisdom, the baseboard was built without any strengthening cross-members. The idea being they would be added later, after the point motors and wiring were installed to avoid the situation of either having a tiebar above a cross-member, or a crossmember where a point motor needed to go. This has, so far, been remarkably successful. The ply used for the frames and surface hasn’t warped.
There were a couple of tiebars that got a wee bit close though
A bit of lateral thinking, and the light bulb goes on! A minor change to the operating bar, relocating the tiebar wire to the end, instead of between the two guides, solves the problem
One material I’ve very rarely seen modelled well is concrete. It has incredibly subtle original colouring and weathering which is far, far too easy to loose at the painting stage. It’s something I need to get right for the platform coping stones and the carriage cleaning platforms and support.
Some time ago, I bought one of the dark grey acrylic washes used by military modellers. The idea looks quite promising, and needs more experimenting and then to get a better colour match
You do have to make sure you apply the wash in one go, and don’t stop for a coffee. Otherwise you’ll be cleaning it off and starting again, unless you want puddle outlines!
Take care and stay safe