Some parts very true, some I don't agree with so much. For example, if you are turning faster laps in your regular track day session than racers are in a race, then you might very well be right. You just might clean up in the races. I personally have never been able to get within 2 or 3 seconds of my race times in regular track day sessions, no matter how hard I try. You put it in a different gear in an actual race, at least that's the case for me. It is expensive if you want to be competitive as there is no way you're going to be competitive running around on street tires that last you 6 track weekends. Race tires are $400+ per set and you would be lucky to get 1 weekend out of them.