But, but, but, there's been heaps of good systems put up on here showing very good POT's from the 40%'s to over 100%'s and quite a few from your pal Bhagwan who posted that the data used for the system was 4 1/2 years worth. I don't follow your logic darkydog2002, unless these ones have fallen in a hole, which I suppose they could have 'coz they were posted many years ago. But surely 4 1/2 years worth of data should be good enough for the future. Ahjays was supposedly a good 'un too. ps; I've got a few crappy systems to add to your commercial pile, but you'd have to pay me for them, otherwise they wouldn't be commercial systems, would they ????