On a lighter front...
I have this strange gig where they really like a lot of bass guitar in particular on stage, and I have to drive an additional cab on the keyboard side of the stage as a "remote bass monitor". For those of you that have been reading my drivel for a while, this is where my "2 ohm requirement" has always come from.
I have been using my MB stuff on the blues gigs, where I don't have to do this, but my Eden head for the gigs where I have to drive that other cab. So far, so good, but I really like the MB tone in a live setting... it's a bit punchier, and I'm sure it'd work great in this gig, but of course I can't drive that other cab.
Well, an interesting development. I just got this F1 head for eval due to a nice sale online, so now I have both the LMII and the F1 (like some other folks do). What's cool about these, at least for my strange and bizarre needs, is they stack perfectly. Yeah, you know where this is going.

Also key, is the parallel effects loop default.
So I pipe the efx send on the primary (my rig) head into the efx return on the "aux cab" head. What's really awesome about this, is I have individual tone controls for both speakers, and volume controls as well. For this particular oddball config, it's about as good as it gets... even better than driving a power amp from the head, since the same tone controls would affect both sides. It'd work ok, but not ideally.
So I was on the fence about whether I'd keep both, and if not, which one would stay, but I think this locks them both in. I'm going to try it at the gig tonight, but I expect it to work great.
A cool side benefit of this is, with some simple cable swapping, I can finally do a real effective A/B test between the F1 and LMII on a gig.