Good point on the testing observation. Many people do things over and over again out of habit, thinking they are gaining an edge. And unless you do extensive testing, are you sure? There's a guy I've raced against a few times, who takes the groover to every new tire he gets, and puts a whole bunch of rubber on the ground. My thought is that Hoosier spends a lot of $$ in testing looking for the best tread design, and we seem to think we can improve on it. Well, one weekend this fellow had to buy a new tire at the track for the feature, and he didn't have time to groove it. They won the feature that night. Car had never been faster. What did he say about that? "Wow, we were sure fast tonight. Imagine how much faster we would have been, had I had time to groove that tire!" It never occurred to him that he was faster because he DIDN'T groove the tire...