Stage fright not withstanding, I am scared to death of performing this trick! Is there a recovery if the end is seen before the beginning that you have used? Or, for that matter, how many times have you been caught? I subscribe to the logic, why run when your not being chased, but sometimes you get ambushed! Any good lines? "Look, that card is peeking!" Hmmm, that's pretty bad. And finally, how blatant was the load that amazed you that you didn't get caught! I'm hungry for advice!

Wow, all I can say is ouch if you get caught. Its going to be hard to explain your way out.

that's one of the main reasons I do not perform this effect to a large group or to a person who you have a hard time to 'manipulate'

There are many versions of Card Thru Window out there. There are Eric James's, John Kennedy's, Sean Bogunia's WindowMation, Dave Forrest's and Brian H's.

There all require some set up or stooge.

Some are easier to get caught and some not. It all depends on the method and what you use.

Oops,sorry wasnt too clear with my previous post

I was refering to the one by Eric James. The normal CTW as shown in his DVD