RE: Is it tied on right?
As long as it doesn't slip, that is the important thing. If you put it thru the string it clamps down on it while you draw and makes it a bit tighter is all. I put it thru the cable and serve the top of it to make sure it doesn't move on me.
If you are concerned about it just look at it every now and then when you draw and make sure the rest is coming all the way up.
Paul