That was one of the things I noticed about the OP850, "precision manufactured by robotics". The OP850-P does not mention this, so this could be one of the PSUs made by hand? Is there a way to recognise an Impervio? IE: Model numbers? Distinctive PCB? There are a few others I like, such as OCZ Z Series, but they are unavailable in Australia. And, after a look through the 80+ list, only a couple of PSUs I can recognise as being "reputable" have been given a Bronze or higher rating, and they are 1000Watters. How about Gigabyte Odins? Do they have anything special?