Snap, Crackle, Pop
Very scary to hear but nothing to fear

Basically it is like cracking your knuckles, hit gets trapped at your pubic bone beneath the ligament and when you pull it away, as in stretching, it will sometimes give an auditory pop. You are going to have a blast with your [words=http://www.mattersofsize.com/forum/showthread.php?83577-Length-master-official-order-thread-now-shipping-06-16-2014!!!]LengthMaster[/words], so many things you can do. Take your time in learning how to use, how to wrap properly, spend some decent time practicing and learning before going full out. Please let me know how it goes.
God Bless!