I've published part 1 of the very first article I've ever written here, it includes a link to the source used in the article. Now I want some comments - but please remember, I am by no means a professional (or even barely competent) writer and I have never written anything like this before. So I will resind my usual policy for comments where I leave anything short of a porno ad in comments - please be constructive in any comments or I'll just delete them...sorry, but only way to protect my fragile ego.