Uhmm, the question, if You can follow.., is what does bringing up welded ports have to do with the MI heads?
I have asserted that bringing that into the conversation is simply to resume the now tiresome pissing match You've brought to every thread concerning this topic. As this is Your thread, it is Yours to piss in, but really You've almost reduced Yourself to a 10yr old shouting "SEE!!! SEE!!!"