How's this one;
If the pivot foot loses contact with the rubber AFTER the stride foot has touched down, I have just seen a step style pitch.
If the pivot foot is PULLED forward of the rubber prior to the stride foot touching down, I have just seen a leap and drag style pitch.
I've only been saying it like this for 10 years.
Hal
I like your description. Very clear, simple, and understandable.
Rick