Zigzag Theory in Spins
In spins the zigzag stretches over time, so the main reference is the distance to bonus events.
In ordinary spins the structure is less visible than in bonus buys. There's no instant entry price into a bonus, so the event stretches across dozens, hundreds or thousands of spins.
The main reference
The main reference isn't the small individual payouts but the bonus games and the distance between them. They help you understand where the current segment is. The zigzag — minus, zero, plus — holds in every mode; only its length and density change.
What to count
It helps to record the spin count, the bet, the balance before and after, the presence of a bonus, the scatters and the final payout. Then manual play becomes part of a shared base rather than a separate note — see counting spins. This is a way of seeing the series without the illusion that one good result must continue.