Passon Performance 5-speed

Didn't one of the car magazines test one of these 5-speeds for over a year on a Duster/Demon big block? According to what I read, they broke a couple of rear ends, but that the transmission held up just fine. They had absolutely nothing that they complained about, and if they broke rear ends, I'm sure that they didn't baby it. I'm on the list for December, or thereabouts. Need to save for awhile too.