Mimicking another performer is the result of personal laziness and lack of creativity. That said, I know that many of us get stuck in a chameleon mode when we see someone execute a certain effect in a certain way that we deem to be "perfect".
If you see an effect that you like then it's fine to study a few dozen different people presenting it whilst taking notes and weighing the good points and bad points in each scenario. This allows you to see what you don't want to do with the effect as well as what you want to avoid so as to stand out as someone that's creative and "different". Too, you will see where the strengths & weaknesses are in that effect and how best to work with them in order to optimize the routine. When it comes to grand illusions the performer is faced with one huge problem; just the sight of certain effects telegraph what's about to happen so it is how you choreograph and present the effect that's most important. If you come off as a Copperfield or Sigfried & Roy clone you will never see the big money or high billing; you're a filler act for clients that want Copperfield but can't afford him.
The "Master" as Goldmos infers above, is within you but it's your choice whether to do the work that is required for creating your own handling & presentation of an effect or simply mirror another. Sadly, many in this trade suffer from denial, not realizing how much they copy the style and even the patter, of this and that favored performer. I've even caught myself doing Bob Cassidy material exactly as Bob performs it. . . word for word. It goes back to our mirroring what we believe to be "perfect" and not accepting the fact that we're not as "original" as we insist we are.
Ashley mentions the Shadow Box in his post. . . are you aware that NO ONE presents it or even employs the same method that Bamberg used?
I got to play with the original cabinet on a couple of occasions and find it a fascinating thing because it is so clean . . . it started off fully open; front, sides & back with the top flipped up and back. It could be turned a full 360 and shown to be completely empty, then quite methodically closed; every step deliberate.
No, there was no base load or other "common" method involved but it was truly a gem; I'm rather surprised on one has attempted to revive it simply because of the novelty of the method and how much more impossible it is compared to those we see used in today's market.