For 6 years I road a Giant CFM which is a carbon frame. I would do drops up to 5' with it and also road it on extreamly rocky terrain. It held up to every thing I through at it. Granted, if you ride hard enough you will trash the rims and other components. You should not worry to much about breaking parts if you are going to use it for free riding, just expect that sooner or later the parts will go. How soon depends on what type of stunts you are attempting. As MC stated, breaking things makes for good conversation later on.
Slainte
