I agree with Luis Vega on this, at least if you're going with a mysterious type of patter. If it is less clear, but still legible, I think it leaves the question of "How did that get there?" as apposed to a comment like "Hmm, that seems really clear for a supernatural being..." (obviously exaggerated a bit). Just my two cents. Though if a clear revelation fits go for it

However I don't know which would be a clearer revelation, I have a feeling though it just comes more down to how you practice and set it up. As for David Blaine, I think you'd have to ask him about that

Good luck on the effect though
