I am not truly sure how a Ganza works, never been one. When they are held I am in bed sleeping for work (all I ever work is midnight to 8am) and I trust the safety of our little girl Penny to her Crackshot Mama! (penny is our 13 year old Jack russell). Keep reading this thread and I a sure someone that has gotten in on them will explain to you how they work. All I DO know is it is a madhouse!