I used to live in Florida and have been to US Body Source in Hamton, Florida. Back in 1997 it was a pretty low budget operation and their products had a reputation of cracking easily. I've heard that they now have 2 levels of each product like CDA 455 said: a lightweight "racing" application part, and a steel reinforced product that resists cracking better under offroad use. However, the "race weight panels historically do not hold up well under heavy off road use. Make sure you are getting the right weight piece or you may be very unhappy. I knew a guy in Orange Park, Florida that bought the "race weight" hood and front fenders for his 69 Camaro and had nothing but trouble with them, from poor fit, to cracking around the mounting points. When he called US Body Source about it they were unwilling to help out because he had used racing parts in a street application. Yea, the race weight may save some pounds, but may not be worth the hassle in the long run.