No, I do not use the Feldy kick. It is more Schusterick / Wysocki style. I am tall and lanky, so that suits me well. Essentially, I bend my left leg and swing it around quickly. From what I can tell, the movement forces the hips to open further and more suddenly. As long as I keep my upper body loose, I don't have to think about timing, it just happens. I do keep the tip of my toe on the ground at the rip and subsequently straighten my left leg which powers the foot pivot.
Summit - Judge - QMS - Leopard - Eagle - SOLS - QOLF - Beast - Wraith