CAN ANYONE TELL ME WHAT THE TWO TEARDROP SHAPED STRING POSTS ARE FOR ON MY CAM?I SHOOT A GOLDEN EAGLE SPLITFIRE1 AND ON MY CAM WHERE THE STRING IS ANCHORED THERE ARE TWO PLACES THE STRING CAN BE ATTATCHED(SPELLING?)--ARE THESE DIFFERENT DRAW LENGTHS OR WHAT?ANY HELP WOULD BE GREAT!THANKS AHEAD OF TIME.