LIKE I SAID IN MY EARLIER POST. I'M PRETTY SURE MY FIRST BOW KILL WAS COMING TO THIS GROWL CALL. HE WASN'T A MONSTER BUT HE WAS THE DOMINATE BUCK IN THIS AREA. I LISTENED TO THIS DEERIN THE BRUSHFOR ABOUT 45 MIN BEFORE I DECIDED TO USE THIS CALL, WHEN I GROWLED HE SHOWED HIMSELF ALMOST IMMEDIATELY. WHO CARES IF IT WORKS OR NOT? IM SURE THERE WILL BE TIMES THAT NO CALL WILL WORK, NONE ARE 100%. I'VE SEEN BIG TOMS BE CALLED IN WITH A SQUEEK LIKE THEY WERE ON A STRING, OTHER'S, WANT COME IN THE BEST CALLER IN THE WORLD.BEING AT THE RIGHT PLACE AT THE RIGHT TIME IS 100% EFFECTIVE (AT LEAST FOR SEEING DEER) YOU HAVE TO KNOW HOW TO SHOOT TO KILL THEM.