I have checked tire wear in the last three races and it is all over the map. I think so much of the tire wear is due to your driving style and how hard you are on the tires and in what turns. Some push hard in the last turn and may get more right rear wear while others might push harder in the first and third turns and get more wear out of the left rear. This is to say nothing about any variances in the tires them selves. If anything, I don’t think any extra weight would help. I think it would only exasperate the situation. These cars are 100 grams and are wearing a pair of tires every two races. I would hate to see them wear any quicker.