I always wear a bicycle helmet for the same reason. Had a few good knocks on the head on my H14. Then I discovered the reason for the traveller... <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" /> The traveller on my H14 is the old slider tyoe so since calling it a "slider" is a bit of an exaggeration with them I didn't get in the habit of letting it out so I got a few good cracks on the head to get me in the habit. <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" /> In the meantime on my Tiger and the 14 I always single hand so I wear the helmet.... just in case... <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />