I'm not a fan of "head between the hips". For my DD, the critical moment having her head over her rear hip at launch, and pulling back over the hip. If she's forward of her rear hip, things aren't good.
Here's a couple of other guys...
These frames are: Left - Toe touch, Center - Launch/heel down, Right - Contact
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It’s a style issue. For awhile I thought the head should be over the front hip creating an attack posture. Like many things it can be done differently.
I’m talking at the launch position.