Mine just arrived today! The weird thing is that as of Monday, all the soprano/concert Orcas on MGM's store were LOW g. I didn't look at the tenors.
I bought the hard set soprano low g and haven't strung 'em up yet. Hard string soprano with low g? :wtf: But I bought 'em for a very special "double-secret-probation" ukulele project that I'm not at liberty to divulge at this juncture. But the next phase of my operation should hopefully arrive tomorrow and I'll have more info. As of right now I'd say that Orcas are kinda thin, and black. The packaging is very clearly labeled as to which string is which. So you won't be needing calipers as a necessary tool. That's all I got.