Wow the testing shop miles reminds me of Ferris Buellers day off, parking garage dudes. As a journeyman watchmaker, I specialized in trouble shooting that other watchmakers had missed. I was trained by a Certified Master. I assure you that you just haven’t found the right guy yet . He’s out there and it’s all fixable. How you search for the right guy at a dealership within your driving distance will be your challenge. “ YOU CAN DO IT” . Your GT350 will love you back . anyone here know the right guy??