You start at the even chance level. Using one (1) as your base unit, and stay there until you get a hit.
When you get a hit, you check your balance.
If your hit makes you a profit or breaks even, then you call it a reset and stay at the even-chance level.
If after your hit you are below your starting balance, then rise the betting unit +1, to 2 units, and move your bets to the dozens/column level.
If you miss 3 spins (a full dozen's cycle) you regress and take your bets back to the even chance level.
If you hit while betting the cycle, you check your bankroll balance.
If your hit makes you break even on the initial balance or makes you any profit, then it's time for a reset.
If -on the contrary- you are still below your initial balance, then rise +1 (to 3 units) and move your bets to the double-street level.
And there the same procedure for each level goes again.
If you miss 6 spins (a full double-street cycle) then regress your bets back to the dozens level.
If you hit, check your balance. If breaking even or in any profit, then it's time to reset.
If on the contrary you are still holding a deficit, then rise your unit +1 (to 4 units) and move your bets to the corner/quad level.
Repeat the procedure for the level.
If you miss 9 spins without a hit, go back to double-street level.
If you hit, check your bankroll balance for a break even or profit.
If it's a deficit, then rise +1 and move to the next higher-paying location level.
Same procedure for the rest of locations.
Always using the cycle = payout to know how many spins to hold your bet on a location.