Well I don't think you are lying, however, I don't think your problem is the quality of your modules. Something is faulty in your electrical setup.
"the failure rate in my studio is almost 40%. No lie....."
Well this is not normal and it doesnt point to one faulty module but rather a faulty system.
I have had my øchd for two years or so and I just bought two expanders so I need to buy one more øchd.
I have a huge system and many high end modules and I can safely say that the build quality of the øchd is superb and up there with the best of them, and the same should be sayd about Bill Wilson's design, simply a badass modulation source.
Now I don't know what type of transformers you are using or the electricity structure in your facilities, but I would unplug it and have it analyzed by a specialist.