The method taught here is completely different from Wayne Houchin's method...that being said there
are pro's and cons to both methods. Wayne's method is much more practical in a real life situation.
The strengths of this method would be that you can allow the spectators to see the fact that the
coin is in the can while it's still sealed up...however that fact is slightly negated by the fact
that you cannot allow for a close inspection of the can. My recommendation is that if you like this
kind of effect, go with Wayne Houchin's version.