Well, it arrived safely Friday last.

Hooked it up to my Zu's using Zu Libtec cable, and to my Consonance CDP using a Harmonic Technology Pro-Silway III+. Sat it on some Vibrapods and off we went...
First CD, Brubeck's Take Five. Sat through the whole thing mezmerised; couldn't bear to get up for fear of missing a new detail, or the sheer freshness of this very familiar recording.
Then John Lee Hooker's Lucky Guy, then the soundtrack to Almost Famous...and so it went until 2 a.m.
This little amp is just wonderful. With the Zu's it sounds so synergistic and, well, 'right.' Incredibly detailed, and oh-so-musical and involving. And tonally it seems more extended top and bottom than the valves I'd been using previously.
And need I preach to the converted on here about the Sig 30's midrange magic?

I'm one extremely happy camper right now. Vinnie, congratulations on producing such a fine-sounding amp. It's all I expected, and more besides.
Cheers, Dave