My principle is simple: take advantage of "hot" numbers as long as they last within a certain spins' range.
A specific spins' range need to be determined in order to separate the ex-hot from the hot numbers.
Hot and cold numbers may change from time to time,otherwise a hot or cold number would remain always like this.
Of course this is far from the truth,thus we need an accurate criterion in order to predetermine when a number is "hot" in order to bet it.
I have extensively studied results in order to determine this range of hot numbers,I've concluded that a range of 27 spins (last 27 results) is the best.
We need a list of the last 27 outcomes,which will be updated constantly after every new outcome.
You should remove the oldest number from the list and add the newest.
In this list we are looking for numbers with 2 or more appearances,all of them are going to be potential winners.
The betting progression will be as follows:
Place 1 unit on each and every number with 2 or more hits from the list of last 27 spins.
After a losing spin,check if the new number should be added to your list
If the new number should be added,then add 2 units on all of the numbers(including the new),if the new number will not be included,then add 1 unit to every number you bet.
After each and every losing spin,you add 1 or 2 unit(s) on each and every number that you bet.
When you eventually win,then you should check if a new bankroll high has been reached,if yes,then restart the procedure from scratch,if not,continue by adding 1 or 2 units (and the new number if qualifies) till you reach and new bankroll high.
I've to admit that this betting method is aggressive,but the profits are high.
In order to feel very safe,you'll need a bankroll of approximately 3,000 units and maximum bet limit per number of 60 units (at least).
I begun testing it with 500 units and gain gradually more than 10,000 units,I don't recommend you to start with 500 because the biggest down drawn was approximately 3,000 units including the active bets.
When the biggest down drawn happened,it has already gained about 6 and a half thousand units,therefore has never reached a negative level.
These results come from a sample of approximately 2,300 spins from brick and mortar casino on a single zero wheel.
First test it to see with your own eyes and thank me later!