The Zero Scatter Bonus (3 scatters)

A zero bonus doesn't look significant: the player is roughly around even. And precisely because of that it's often underrated.

A point of fixation

In the data such a bonus can be a point of fixation. It didn't give a strong plus, but it closed the expectation of an event and changed the state of the current cycle. That makes it part of the structure, not a non-event.

What matters

Look not only at the payout but at the path to it: how many spins passed, the bet, the balance before the bonus and what happened after. Read it as a payout class in the cycle — where a negative one is background and a positive one is a peak, a zero often closes the segment.