For those that know me, you will agree that I have more than a passing interest in modelling Network Rail test trains in 00. I think it's about time that I detailed my work to show that it isn't particularly difficult in many cases to convert a r-t-r item into something more accurately representing the prototype than just simply painting it yellow. I have put this thread in modifying r-t-r although a couple of items are not in that ctaegory, but it keeps everything in one place (unlike my s