The big issue was rear grip and top speed. We already knew about the top speed, but the lack of rear grip was surprising. The first few laps were a nightmare - I was losing positions. As soon as there was more rubber on the track, it was better. But overtaking was really difficult. I did my best, but I used my rear tyre more than expected, and I finished in eighth position. It's frustrating because I didn't make any big mistakes. I was just losing out because of the lack of grip. Let's see if we can find more grip in Austin.