Holy-moly, 9,3/4, serious gear.
No envy though, I'm very happy for you to have that setup, but I'm equally happy with my setup:
LOVED the cabs straight out of the box, and they quickly replaced my 2 EBS 410 Evolution.
Have had the head for a couple of weeks and didn't quite gel with it until last night.
I always felt it was stunningly made, great size and weight (just right), great set of features, plenty of punch, and that Contour B. Played it at home, rehearsal, and a couple of gigs. Yet somehow I wasn't quite happy - it wasn't "my" sound (EBS1v2 pre into Peavey IPR2 3000 DSP), super-clean at any volume. Just could't get that.
But last night it all fell into place, or possibly more correctly my exceptions of "my" sound were slightly modified. With a slight bass and mid boost, and a slight treble roll-of on the Z2, I used the clean channel (gain between 9 and 10 o'clock), Contour B at about the same position, EQ flat, and master at about 11 o'clock. And it just fit, and worked. If anything I was probably a little too loud on stage but there was so much clarity, definition AND punch in each note it wasn't funny. It sat perfectly in the mix (in terms of sonic space, like I said maybe a little too loud). And the DI (pre-EQ) signal was apparently quite spectacular because quite a few folks from the audience commented on the bass sound. So all's well that ends well.
I now have a rig that fits into a small hatchback (rather than a medium-sized wagon), is a single loading on a small trolley rather than at least two trips), and sounds better.
Considering how punchy 2 are I can hardly imagine 6 BA12-3s - enjoy - I know I will

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Regards,
Michael