I absolutely love this effect. It's easy to do. Packs small, plays big (I've performed this outside
for an audience of over 100 people at a festival!)
My dad watched the demo video with me a
long time ago and his reaction was, "What the H--?!" His initial reaction sold me and I have loved
performing this effect all over the place.
And my justification for the ropes: I'm a
magician. We do what we want!
Or something more mature like: All the greats used ropes and so I
follow in their footsteps.
Or I just perform the routine silently ("Teller" style). Bottom
line, great effect!