That back kick isn't BAD! You are definitely moving backwards (and it's not a powerful kick for anyone). The biggest issue you have with it now is that you are still dropping the knees when doing the powerstroke of the kick, and the loading phase could be a little slower. Watch the kick -- you'll see that each component takes about the same amount of time; the loading phase should be discernibly slower than the power phase.
I watched the helicopter turn for some time. The first thing I saw was that, in your desire to turn, you are using a lot of body English -- turning the shoulders and hips, as well as doing the kick. Relax, and just use the feet, and let your success or lack thereof simply serve as feedback.
Each portion of the kick -- the frog kick part and the back kick part -- is often executed correctly, but it seems as though there isn't a real rhythm to it. The helicopter turn, at least for me, feels very much like an egg beater, turning with a steady rhythm. One-two, one-two, one-two -- frog kick-back kick, frog-kick back-kick. Doing it that way, the frog foot really does "deliver" the water to the back kicking foot, which then kicks it away. Then there is a brief rest and reset, and the sequence occurs again.
I watched the helicopter turn for some time. The first thing I saw was that, in your desire to turn, you are using a lot of body English -- turning the shoulders and hips, as well as doing the kick. Relax, and just use the feet, and let your success or lack thereof simply serve as feedback.
Each portion of the kick -- the frog kick part and the back kick part -- is often executed correctly, but it seems as though there isn't a real rhythm to it. The helicopter turn, at least for me, feels very much like an egg beater, turning with a steady rhythm. One-two, one-two, one-two -- frog kick-back kick, frog-kick back-kick. Doing it that way, the frog foot really does "deliver" the water to the back kicking foot, which then kicks it away. Then there is a brief rest and reset, and the sequence occurs again.