[QUOTE=Tkoval;184196]I have the same license 1600/6000 master but also 2nd mate. Your going to need a unlimited license to upgrade to unlimited master. The going from 2nd mate to U/M using the OSV loophole is legit but you can’t go from 1600 master to unlimited master your going to have to have a unlimited mate first[/QUOTE]
There is nothing in the CFR that says anyone needs any Unlimited Mate license. Simply 360 days sailing as Chief Mate, which can be done with an OSV 6,000.