They've settled out of court with non disclosure...read that as you will, but it pretty well means someone ponied up some money to make the problem go away rather than picking a more expensive losing legal battle.Lawsuits being filed mean nothing. Large corporations file questionable nuisance lawsuits all day long. Did you see any examples where Michelin actually prevailed over Atturo in any of those lawsuits?
Not sure why you are asking for reviews and tests on the AZ850's when you already mentioned above they don't exist. If having those is a prerequisite for you to buy a tire, that's your prerogative. But it's certainly telling how you continue to ignore the dozens of forum members saying positive things about these tires when you yourself have zero experience with them and no negative reviews or tests to share. Obviously you don't think any of us are capable about making our own judgements on tires.
Perhaps a more appropriate response might have been "I know nothing about these tires, and I prefer to buy tires where I can see the results of professional reviews and testing". But that's not what you chose to do.
Dozens of subjective posts from people who have already invested in the product and want to justify their cheap purchases is not a substitute for an independent tire reviewer with objective empirical evidence of their performance.
Show me measurements of braking distances, skid pad/slalom numbers, lap times, noise measurements in dry, wet, and slippery conditions versus competitive tires from other brands.