No way, don't change it for laypeople at all.
As I said, it's really nice, but not really that magical.
Now, if you did this with signed cards, for instance, spectators would scream.
Or, perhaps as the ending to an ambitious card routine?
You asked for criticism, so I gave it
But, now you're asking for advice, I am sure the answers will be a LOT different.
Bear in mind, people on this forum will be OVERLY CRITICAL (like I was) because we're conditioned to try and analyse magic.
Spectators/laypeople will be far less critical
