Looking forward to the 15th. I know the Colorado guys heard the [redDACted] and I agree that it's bit warmer and a bit less-focused / precise sounding compared to the Yggy, but I wouldn't call it wooly at all. Hard to say because the pre-production units from what I've seen are insanely hand-soldered component by component, SMT fine pitch stuff and all.
Not sure if something was not 100% right with the unit itself or not, but given the issues we had with the Macs not playing nicely with reDACted's USB input (seriously, when it wasn't working right, you should have heard it...so weird), who even knows if we heard exactly what anyone else has. Whatever I heard, when (supposedly) working right, was not subtle. I know a couple other guys heard it too. We might all be crazy. But the Yggy sounded damn good, that's for sure.
Regardless, wasn't production. Not worried. Given track record, production unit should be super solid. Strongly considering one myself.
And since someone asked, I think it would pair just fine with the Val2 + HD650. Just roll tubes and mod HD650 based on your preferences.