There's a few ways to look at this issue however; the first time you did it you managed to gain "surprise" from the audience by overcoming possible danger HOWEVER, to repeat that same kind of set-up causes you to loose in a big way because the second go around looks like a poor trick and likewise devalues how people will remember that first situation where you "nearly lost". In other words, you will go much further if you change things around and avoid anything of the sort and shoot your focus in a new direction.
Take a look at the Copperfield specials; He went from Vanishing something big one season to a phenomenal Levitation or an Escape the next season and so on. He gave the public "More" and "Big" without repeating the essence behind a given stunt, and that is what we're discussing here. So maybe you should weigh other options; maybe do an escape that's rather dangerous looking like a Water Cell, Door or Bed of Death, etc. ? Maybe you could stage a super high Levitation in which the young lady ultimately vanishes or bursts into a brilliant ball of light and is consumed into nothingness?
This is a very important decision in that you need to look at how to "out do" yourself but do so in ways that are a treat to your guest.
Think about it.
