I haven't been around for a couple of days, or is that four( ?), where has this week gone? As I was saying I have only just read this post but the strength of this thread is that details of how things are done and developed, and changed are all gone through in detail. I have seen this in some other threads and it is very instructive, on others it is like Blue Peter, 'here is something I did earlier' and although it looks good you would not then know how to do it yourself. The whole point of a forum like this is to exchange ideas so that we can learn, not just modelling but railway practise as well.
Keep on posting, it is great to see things develop and new ideas coming in.