He talked about all of the little refinements they are doing after the testing they did. They tilted the shifter and attached it to the cable double shear, now it works much smoother, they disassembled the test engines and changed some of the tolerances for more longevity. It sounded like the trans and differentials are all fine. That's about it.
It was boring, that poor guy is a great designer or whatever, but he's no motivational speaker! LOL However, I'm still grateful that they're going over everything with magnifying glasses to make sure they're not missing anything. Nobody's perfect, but if they keep looking everything over again and again with multiple people, eventually they'll catch everything humanly possible.