Inspired by Lennart Greens Flourish Z Cut, I found a nice new method which gives me inspiration for new ideas. When you do the basic flourish Z cut, you will normally take the middle portion of the deck clipped between your ring finger and the thumb. If you start to do the Z cut, push the top portion to the left. For the shot you do not clip the card with the ring finger but flick the top card of the middle portion of the deck. Now the card shoots sidewise and you can finish the flourish Z cut.
The 1999 version: