I moved away from modelling 4mm/OO because I was becoming too obsessed with details, to the extent that hardly anything got finished. Layouts were started then abandoned. I have a big box full of stock for a future UK outline layout but I seriously doubt I'll build it.
I've settled on US HO where I'm much happier, I've spent a lot of time researching the Rock Island RR and have actually managed to finish a layout based on a general area at a general point of time. I'm happy with my stock being 'close enough' as I don't have enough knowledge of the prototypes to bog myself down. I know which models are dogs though, so I avoid those.
I could of course go online and study pictures of the prototypes to the nth degree, but I'm just not that bothered anymore! I have a working layout that is set up at home and has been to an exhibition, it works really well and my friend enjoy operating it. That means more to me that having the the drivers seat cushion the right colour.
