For the most part, this is very hands on. It just seems like you are touching the cards too much.
Besides that, I use this effect purely to get them to bring their credit cards out for
another effect, which gaurantees reactions.
This for now is a temporary and trial addition
to my routine, so far the real life reactions from the participants I perform for are displeasing.
Perhaps this is not for me.
Pro:
1) Impromptu
Con:
1) Unnorganic Handling