Which version of the Black 5 is best {in your opinion}

I have just run a Workshop scenario on the West Highland line that uses an awesome Black 5, with wheelslip, visible sanding and good sounds, it is the best version I have heard. I asked the uploader which Black 5 it was, he replied that it is the one by Keith Ross on the Western Lines of Scotland.

Roland.

Which version of the Black 5 is best {in your opinion}