Wizard Charm: timing?

[varradami]

Originally Posted by Chad Cloman

It has been made clear in several recent threads that simply stating you are going to perform an action does not mean the action has started. The action begins when the card hits the table (or the discard pile).

My understanding is either way is valid. Some groups prefer one way, some groups prefer the other. My group has always gone by the action being stated, and we've never had a problem - though we're not very competitive.