This DVD is somewhat helpful, because it gives you several different ideas for routines. Some of the
routines are very good: Johnny Thompson's idea of doing a transformation instead of a simple color
change is very creative. Some of the routines are awful: Steve Draun's "challenge" routine, which
just frustrates and embarrasses a spectator, is a good example of how NOT to perform this effect,
although he does have a cute kicker ending with a multi-colored knife. Rene Lavand's demo has a good
example of how to handle the sleight, although you would need a certain style of knife to use it.
Daryl's presentation is perhaps the cleanest and best of the bunch. However, I personally don't care
for patter that supposedly explains how a trick is done, even if it's a false explanation, because
as Dai Vernon once said, confusing people is not the same thing as mystifying or entertaining them.