Swing out and back to the platform. As you swing back forwards again, bring your legs up in front of you and over the bar to quickly get into a Bat position at the frontend before letting go for the catch.
This trick is extremely similar to the Drive Somersault, except the legs are apart and touch the fly cables briefly (the Bat position) before letting go.
You can find out more about this trick in my books:
Thanks to Ryan, Kat, Ted and the team at Circus Arts Australia for providing this video.