Just wanted to thank everyone for all the advice I've gotten on here. My son won his pack and districts this year. I helped a friend of mine from work and his daughter with their powderpuff derby car this week. She won her group and went back this evening for the top 3 and won that also. The picture he sent me with the trophy and big smile on her face was priceless. I have alot to learn still but you guys have taught me so much. So glad I ran into this site a little over a year ago. You guys are great!