I fantasized about adding this submission to my game several months ago when Professor Rafael Freitas from New Mexico showed us the technique and several variations in a seminar here in Seattle. The more I've started to develop that Mendes Brother's inverse kimura set-up from guard, the more I think that it is time to bring back the baratoplata for 2012.
This demonstration of the technique with my Professors Rodrigo and Carlos is among the best out there. Specifically, it shows the detail of needing to get parallel to finish the shoulder lock - the same as you would for an omoplata finish - only facing the opposite direction.