Kind of curious who they are.
This is just a stupid question in my mind!! How much had you installed in 1980 when you first hit the market??
So anyone that tries to make a product to give you competition in automatically a "cheap imitation knock off"?
Pony up the mouth of that horse you are riding and post VIDEO of your testings just because anyone can do what they want to a product and then fudge the photos however they want. until then you are starting to sound like the southern end of that pony with threats you might not be able to back up.
BTW, if everyone uses their brain a little...................... We are talking about an electrical product and anyone can make it fail if you try to. The question is will it fail under normal operations of its maximum normal usage limit?