I'd assume both parties who claimed they had failure with their Plate here in this thread can perhaps at least compare them.
To the original poster of this thread, I know you made mention of hitting the Pad-Plate with come compressed air. Again, I wouldn't think this should be a cause of separation?
Me, I'm an analytical sort of guy, always the inquisitive one wondering what makes something tick?
In this instance of the new model Boss-15, and an apparent excess of heat is still noted with the machine, even after modifying technique, etc, then I'd begin to think along these lines I'll mention now.
What and why would be the causes of such excessive heat, and would be thinking along the lines, "is it just my Unit, or are all of them exactly the same in this regard?" That would be a question that perhaps only Griot's Tech Team could answer, or if a faulty unit was replaced with another.
My thoughts with any particular machine would then be, "is there a faulty Bearing or Bushing as the cause, or a faulty Motor?" "Or a lack of needed Lubricants in critical areas"?
While one, and in particular, someone like myself would think of an investigative "surgery" to the tool, on the other hand I'll caution that this would also likely void your warrantee.
I would then assume that Griots would recognize when in time a customer issued an initial complaint-case, and such would be take into consideration at a much later date should the machine continue to falter-fail.
In other words, 3-4 months into ownership, Griots isn't going to drop you like a bad habit, and that some other issue as a cause is apparent.