The simple answer is no, there will not be a prototype made and fitted to a car for testing. What would the testing proposed entail? Who would do it? Which conditions would be used for testing - weather, terrain, speed etc? What would conclude a successful test? Over what sort of mileage and timescale? I would be amazed if brake component manufacturers worked in this way - their r&d costs would be unviable or the price of brake discs would be ridiculously high to cover the same. I'm not going to go into detail on this thread/forum for obvious reasons, but I have complete faith in the process followed to produce the product. We're dealing with a major manufacturer who works only in this area. If any member on the list lacks confidence or trust in this I will happily refund payment immediately. I'd be surprised if anyone went to Brembo before buying the Ferrari 550 aftermarket discs and insisted they provide proof of fitting a test set to a car and the results.
It's really hard to put all of this down in writing without sounding defensive, but we haven't jumped in blindly without asking lots of questions and getting detailed answers from the manufacturer.