dont be decieved, swing length and swing speed dont really go hand in hand. Daly would probably get the same speed if he stopped at parallel. I used to swing past parallel and I now stop short of it and get more distance than before. If you look at daly's back swing, you will notice he crosses the line at the top, if he kept the club pointing down the line he would not be able to get back as far as he does with it crossing the line.