Yes Possie, I was also trying to keep it simple, as soon as you get into subjective/objective ananlysis, the method itself seems to disappear. What you are asking is: I HAVE the method, what single factor will improve POT? yes? and in answer to that I gave my top 3 suggestions, and invited others to add theirs, (not asking for alternative plans etc etc)

So collectivly lets see what we can up with?