Hey TrentB and Nutdog and Snaxter, it is interesting to hear your takes on these amps. Being a Glock owner (Soul II) I will say that the Blue Rock is on a very short list of new amps I'm interested in, along with the B/amp and a couple of others but finances don't allow that type of investment yet. So I hope (to get back OT) to pick up on an AK cab to add to my cab arsenel, most likely, before I get another amp.
I gigged a BlueRock for half a year or so. It is a great amp, though I actually found the D-800 to sound and feel a tad "louder." I attribute that partially to voicing of the preamp (that was with both set at noon, voicing flat on the Mesa), and partially to the taper on the Glock which doesn't have a ton of volume early in the master. I always was past noon, even on jazz hits.
I moved it for a couple of reasons. First was it is a lot of money to have tied up in a head. Not a major reason, but if I can have something that does everything (or 95%) of it for significantly less money, then I'm going to go with that solution. No piece of gear is perfect, here was my analysis relative to the D800+ which is what kicked the Glock out of the house:
Glock:
really well built - love the pots (yes, stupid things make me happy)
5-band eq section with better eq points than previous Glock class-D heads (I had a Blue Soul for a day and sent it back)
switchable mid frequencies get you part of the way there but it isn't a full parametric
switchable eq section - I have a Rob Allen that I typically will eq on gigs, being able to go from "flat" to eq'd with a switch is great (though it isn't footswitchable)
drive section is great in theory, not so great in practice (at least in my hands - I never ended up using it on a gig)
size is great compared to a lead sled, big compared to many of the class Ds
the voicing (tied to the drive), mp3 input, and the two input channels are things I never used
$1650 is a lot of money
D800+
really well built, but not quite as "esoteric" as the Glock
4-band eq section has low and high mid parametric (set q, sweepable frequency) - works great on a gig
deep switch is useful for certain gigs/rooms
voicing knob is useful for certain gigs/rooms
bright switch isn't something I use at all but some guys dig it
damn loud, not heavily voiced in one direction or another
built in Petaluma, and $799 is a steal
The Glock is a great amp. So is the Mesa. Just depends on what you need. Both play great with Duke's cabs - steubig and I have done a number of tests/demos with the Glock, both Mesas, and every other amp we've had the past few years along with H1203 and TC112 cabs.