Hello, sorry if this is a nooby question, or one that has already been answered, but how exactly do whiff/free cancels work, and what are their differences if any? I have tried to figure them out on my own, but I still don't fully understand them. Sometimes you can whiff cancel, sometimes you cant; sometimes when you declare a free-cancel, you can cancel the move, but other times you can't. Can anybody give an explanation?