I managed to slap some armco rather hard and the Crew Chief App stated I had a flat left front tire. Ok, I could feel some of that. I could still control the car but it spun a time or two when the road dropped away. But looking at the tires LCD screen, there was no way of knowing the tire had deflated. The wear rate stayed equal to the other tires and the temps also stayed in similar ranges. If I had not had Crew Chief running, how would I have known what was causing the suddenly bad handling?