i want to know if these types of seats are durable?? i love the style of them but i am not sure if my large a s s will break them or not?? i know carbon fiber is super strong but i am not so sure on the fiberglass ones?? are they usually pretty thick layered fiberglass or is the first time i go to scratch my butt when i am screaching tires around the taco bell drive thru, going to break my seat?? please let me know if you have had a pair of these kind of seats or know of a cousin who knew a guy who knew another guy who's sister had some of these type of seats?? i really need to know before i purchase them, all humor aside....... did someone say good humor?? but seriously, the seats?? are they worth buying??