Because when he unlocks it and pushes down on the outter sleeve, it'll pop that "squash ball" right off the top.
<img src="http://www.catsailor.com/forums/images/graemlins/smile.gif" alt="" />

oh and tall bastards like me need all the tiller they can get <img src="http://www.catsailor.com/forums/images/graemlins/smile.gif" alt="" />