If there is a stutter step, it means there's a slight pause, and that slight pause is where the second push happens. By laws of physics, with the front foot in the air, and a pause with the back foot, there has to be a second push.
Totally agree. That is exactly what i found in video too. If that pivot foot pauses...it pushes off again...therefore is a replant...and is a crow hop.
The dirt...shows the signs.
Leaping is easy to see and easy to detect in the dirt because of lack of drag mark. I watched one ump...watch a pitcher closely that leaped every single pitch. Someone asked him about it and he watched her warm up...each time was a leap. He shook his head no...and never called it.
I wanted to ask him, with her being a leap/drag pitcher...how there could be no drag mark after she pitched...but figured if he couldn't see the 3 inches of air under her pivot foot...it was probably a useless endeavor.