Its ok at thirty nine, at sixtysix you will find it different, your minds willing but the body Is,nt . It,s ok the government saying people have got to work longer that's ok if you,ve sat behind a desk all the time, but after a lifetime on the tools humping gas bottles up an down ladders its getting harder. At thirtynine Install I think you will have to work until you are knocking sixtyseven anyway. cheers redroge