This has been our standard procedure for all MCs for the last two years or so.
It works on everything we have tried it on. The most common MC we deal with is the early dual reservoir Corvette style. We have also used this procedure on some oddball stuff (like a '34 Olds, and '39 Olds, and several 30's Packards) and it seems to work equally well with all of them. We don't ever deal with late models (late model for us = 35 years old or newer), so I can't speak to the effectiveness on those.
Also, when bleeding the brakes, we put a block of wood under the pedal to keep it from ever bottoming out, and let the pedal up slowly rather than letting it spring back on it's own. Between that and the new bench bleeding procedure, we haven't had any problems with brake jobs in the last two years.
Knock on wood...
Originally Posted by cobalt327
....I would have thought that WE would've known about this before the rebuilders figured it out!
My rebuilder, even after seeing it work many times, still refuses to accept it.