Since the suspense is high, here is a system using "prospective" hot numbers.

I had good success with it and it never lost.

When a number repeats within 18 spins I circle it and it is played for up to 26 spins. If won, we stop it. We play the rest of the numbers and add new ones until each either wins or loses 26 spins.

I made a matrix showing the total results. When a number wins we get 36 units and we deduct the units spent up to the winning spin. ( an easy way to keep track of each number individually).

Example 14. it won 36 units, but we spent 7 units till it won. A net profit of 29 units.

The rest of the numbers similarly.

I only did 6 numbers just to show it as example.

You don't really need progression as it wins with flat bets most of the time.

The way I play it is quit as soon as I have a good profit. Wait for new spins like 10-15 and start all over again. If you take the time to test you can draw your own conclusions.

The logic is that if a number repeats within 18 spins, it has the potential to become hot.

All you need is to show up one more time before 26 spins.