US147 - tailwalk

[BelSkorpio]

Hi,

In the weekend I was out on my US147 + standard drake 58 fin + 8.8 MegaXS (gunsails) in 12-13 knots average with peaks till +/- 18 knots. A great combi.

During a serious gust, I've done quite unexpectedly a crash, just like the one in this movie (it's not me in the movie):
http://www.youtube.com/watch?v=SQa9oPUaPWc

Luckily no damage to my gear. Only a bruise on my head because I've hit the mast.

Now, I have been windsurfing for over more than 20 years, crashed in many ways, but never like this. What would be the main cause ? Personnally, I guess my fin was too big.