It's awful shiny and cute and light. Does anyone remember if the old reverso, or the BD ATC-Guide, came with the same warning that when one second is weighting the unit and making it auto-lock, if the other second falls, the unit may not lock them off?

I've been using a reverso since they came out, and honestly, I didn't know that. I feel like a jerk now, like one of those totally uninformed gumbies who didn't get proper professional instruction and would be crucified had an accident ever happene - but I honestly don't remember that warning in any directions.

I'm pretty sure that for the "old" reverso (which I own, and like for the most part), IF you were bringing up 2 2nd's on autoblock, that EACH needed to have their strand of rope with it's own separate locking biner.
(so you'd need 3 lockers all-in: one to attach Reverso to anchor, one each for each follower)

I'd imagine to avoid just such an incident as you describe.

Of course, it's been so long since I've climbed anything that I could very well just be talking outta my ass.
YMMV.