Simply, you aren't clean at the conclusion of the trick.
However, the required 'ditch' is easy...
Since the effect is very visual and the impact is high, you'll have plenty of misdirection to cover it.
Don't know your experience level, but, if you're a beginner, you may want to keep looking. Some say a beginner can do this. Maybe?
If at an intermediate level, this is a great trick...especially for the $9.95 instant download price.