Pan Slings on Instagram: "The cracker never lies. When a sling is being used most efficiently, it will crack. The primary purpose of a cracker on a sling is for audible feedback on throwing quality. If the throw is poor in terms of form or effort, you won’t get much of a crack. Like a whip, simply pushing hard doesn’t always equal a better crack; efficiency of movement is key. Keep in mind that you can have efficient form and still be off or on target. #panslings"