stand ups are probably less dangerous than sit downs. most stand up riders hang out in the bottom of the power band because we just care about a strong holeshot. most sit downs end up riding usually in the upper RPMs riding around 50+mph.
stand ups can get risky when you get into freestyle, but i always wear a helmet when doing anything crazy and whenever i ride in large surf.
if you ever get into stand ups you'll never go back to sit downs. guarenteed. they're just way more fun.
check this video out if you have myspace:
http://vids.myspace.com/index.cfm?fu...oid=1227584445