Need Help with Dolphin Kick on Back

[plee12]

Hello,

I'm trying to master the dolphin kick on your back, either along the surface of the water or underwater.

When I'm doing the dolphin kick on my back along the surface of the water with my hands extended above my head (hand lead), I can't seem to keep the water out of my face. Water keeps splashing into my face. When I do it with my arms alongside my body (head lead), keeping the water out of my face is much less of a problem. What do I need to change to keep water out of my face in the case of hand lead?

In addition, I'm trying to master the underwater dolphin kick on my back. For some reason after kicking for a short distance, I either migrate up to the surface of the water or migrate down to the very bottom of the pool. What's the trick for keeping my body between the bottom of the pool and the water surface?

Thank you,

Peter