I wouldn't worry too much abou the pressure. Like I said, that is pretty good for an engine with those hours on it. I'm not sure how the oil analysis works, but the metal would be going very slowly into the oil, don't know if it will show up or not. Hey, it is a 16 year old marine engine, run it till it pukes (pretty sure it will be a while, especially if you keep clean oil in it), then get a new shortblock, you got your money from that engine.