      */
     static public function action(action:String, ... rest):void
     {
-        var list:Array = senderList.toArray();
-        for each (var sender:ITrackingSender in list)
+        for each (var sender:ITrackingSender in senderList)
         {
             sender.externalTrack(action, rest);
         }

     */
    static public function addSender(sender:ITrackingSender):void
    {
        senderList.add(sender);
    }

    /**

     */
    static public function removeSender(sender:ITrackingSender):void
    {
        ArrayUtil.removeValueFromArray(senderList, sender);
    }
}
}