This THU update actually includes a feature I suggested, I'm proud to say, and Steven agreed it was a great idea, saying "You should take the credit! It’s a great idea!" Here:
Make an SM57 the default mic for all TH-U and OwnHammer cabs.
Previously, the AKG C414 was the default, and whilst it's a great mic, I figured most peeps would feel the need to swap it for a '57 or something else "warmer" / less-accurate / with more mojo most of the time, meaning that there was an avoidable, unnecessary step involved when browsing in most situations.
As for the "Rigs", one cannot deny their accuracy IMHO.