I feel like there’s some confirmation bias there. I feel like Tesla would have said something if it were the case. It’s also possible the software had been tweaked before this person drove with the specific track brakes. All I can say is when I used Track Mode yesterday it’s like a completely different car in terms of ride comfort and how flat the car keeps in the curves, not to mention the much greater regen etc. I don’t have the track pack, as mentioned, and I’m very, very skeptical about any handling improvements beyond what everyone gets. It doesn’t really make sense, if you think about it.