Dizzy Baby help

Hey guys, whenever I try to do Dizzy Baby something strange happens, I manage to finish the trick but the string that hangs down where my thumb is gets a little twirled since the yoyo is swinging in a loop and it kind of over laps the string a bit. I think I’m doing it wrong, any advice?

Nope, you’re doing it right.

That is supposed to happen.

Ah, alright. Thanks guys.