all this discussion of seaworthyness of a 11ft sib got me searching google.. then i found it ! with some training and some gear, Australians bash around in these boats, racing, jumping, pounding waves and the like.. the standard boat is the achillies 11ft sib and a 25hp motor, a couple gear.. just makes me feel better about waves and learned alot about how to drive these in surf safetly from videos like this one
http://www.youtube.com/watch?v=_qd1_JtPs9w
http://www.youtube.com/watch?v=_qd1_JtPs9w