hello david my name is PHIL ,i was at sea for a few years 63 to 68 ,i sailed with various companys but spent a couple of years on the aussie coast with BP,i am not very clever with the computor myself,i just keep sending messages to everyone hoping they arrive where i sent them but if i can be a friend and help you i will give you my very limited knowledge ,i am 63 in march and was on deck i am a fit person but even young ,i did a bit of boxing but only followed other sports and still do,i live in BLYTH,NORTHUMBERLAND PHIL