The knot goes on the opposite side as the hook as it goes up the mast. When it gets to the top give it a little extra umph to make sure it is all the way up. Then over rotate the mast to one side or the other. You'll find the system (which side the knot goes on, which way to rotate the mast) after a few tries. It's funny but sometimes it goes in fine with just a pull up the mast.
