SOP or HQ is the best i think to be NSF MP(Man)...if you talking about simple, standard life..For MP Specs... in Safpu.. basically no difference between Nsf man or spec.. just that Specs more responsibilities. Other wise, even new Specs have to OJT from lao jiaos most of the time.APC especially cant function without the men.. likewise for DB and ZPC. Not sure if things have changed since