The Bill switch is kind of difficult to learn at first. It is not overly complicated but it requires
smoothness in execution. The original also has the problem of being cramped and your hand blocking
the bill for a second. Kevin King solved that problem. This handling is smooth and is extremely
visual. He does an excellent job teaching the trick step-by-step and even shows you and effective
way to practice. Overall, this is the only resource you need if you want to learn the bill switch.