I probably would have bought two of these cabs if they'd existed. I went for two GK Neo 112 IIs, great cabs as well. I have a GB Shuttle 6.0 as well. Of course, the cabs are not the same, but my rig has played fairly large outdoor venues, miked of course. With them stacked vertically, I can hear them just fine at most gigs. I think you have a great rig and can rock it anywhere. I'm sure others will chime in about the combo you have.
Genz Benz Club#387, The Ibanez Club#975, Gallien Kreuger Official Club#880, California Bassists Club#95, Bass Players Tennis Club#1, Flatwounds Club #4, Danelectro Owners Club#38