Hey guys if you are interested I posted a shoot-out between an original 60's U48 (same as a U47 with a different polar pattern selection available) but they are all in cardioid.
Here is the link to the thread
Original U48 vs SA47 vs Slate U47
I'm amazed by the Stam, I hope this will help you guys too. My friend paid his vintage U48 close to 10k, and I think it's worth it every penny, but the Stam is holding pretty damn awesome.
They are about 20 short samples, all the mics shine on percussions, who knew, next time I'll track drums and percussions with a 47. For every instrument and vocals each one of them performed slightly different but really close, not audible differences on an iPhone for sure. Pick your favorite and feel free to guess in the comments, I'll reveal the results in a few days but feel free to PM me if you are dying to know.
I hope you'll find it useful.