I'm not sure what you mean when you say you shouldn't run dead down wind, as you're not likely to broach when running, but when reaching it can be an issue for sure. Unless you're talking about the main, and then yes you should use a preventer (although I don't). As far as avoiding a broach with the spinnaker flying, I wouldn't let go of the sheet, (unless you're knocked over) and certainly don't "head up, abit". You need to be very aware of the wind direction and the power behind the main. Any hint of a broach, depower the main and bear off the wind.
Also, I've sailed around and near Point Roberts a few times, you get some serious wind and waves up there.
Last edited by knotaloud; 07-12-2007 at 06:50 PM.