In Bobo's they teach you how to do a vanish with the aid of your watch. I really didn't realize how deceptive this was for a complete coin vanish untill I did it for my friend. The thing was my friend knows about magic and does some tricks here and there, but I had actually told him what I was gonna do with the watch and coin just to demo it for him. So I did the vanish and he was actually fooled completely even after I told him what I was gonna do. So I showed him how I did it and he still didn't believe that I could load a coin that fast. If you practice this one you will be rewarded for how deceptive this is. the only problem with this is not letting the coin talk while loading.