As the world of karting changed, most racers will adapt to the changes as they come. But, There are a few that struggle to keep up with the field. Maybe they get stuck in the old way of thinking, they refuse to buy newer karts and try them, or in some cases, the newer karts and setups are more confusing than what they used to be. Todays karts seem to have a base setup that is fairly close to the require percentage weights, with minor adjustments to compensate for track and weather conditions. After that base setup is in the kart, then all the focus goes straight into tires. As far as I've seen in the last 2 years everybody talks about tires. Duro, hard tires, soft tires, and numerous prep lines. What was it like 10 years ago? How much setup changes where made at the track? What about tires back then? Was the prep as important or did everybody just wipe what the guys pitting next to them was using? It just seems that the tire game is where the speed is at now, and I want to know if its always been that way. If not, when did it change, and why?