Jump or Step

[Camron Rust]

It is sad that no one is giving you an answer to your actual question.

You are correct that the movement must be judged to either be a step or a jump....that the result is either legal or a violation depending on that judgement. There is no explicit rule or even guideline that has ever been published that defines either.

My rule of thumb is to judge the primary direction of the movement....up = jump, lateral = step.