Served with several small boat coxswains stationed @ Ocrakoke. They loved it, and would always argue with those from Coos Bay & Oregon about who had the toughest small boat surf. I never had the "pleasure", but I'd have to think that going 360 in a self-righting MSB would be a life changing experience.
While the 44 footer I crew on never rolled, I will never forget towing in a 140' fishing boat in 30 foot seas for 32 hours. We had to be clipped in the entire ride.