Let me try to explain this where it makes more sence to every one who has replied to this guy you need to change your draw length how WRONG you are ( No Offence intended but you are wrong!)
when holding the bow at full draw with a proper draw length the string at the nock will come to the corner of your mouth and touch the end of youre nose, it makes ABSOLUTLEY NO difference whether the string has a loop or not that is where the string needs to come to to achieve a good aim and a proper form.
now if you shorten the draw length you are going to have to rubber neck or bend your elbow in order to get the string back to its proper orientation where it touches your nose and the corner of your mouth.

your proper draw length does not need to change with or without a loop!

FLASH550
provided this link
that goes more in depth of what I am trying to tell you clowns
http://www.huntersfriend.com/drawlength.htm