1. Wait until the winning numbers land two times
in a row on one of the "dozens" and/or
if the numbers land two times in a row on one
of the "columns".
2. Bet 5 units on each of the other two dozens and/or
bet 5 units on each of the other two columns.
Most of the time you will win.
3. However, when you lose on anything other than the
zeros then triple your last bet.
4. If you lose again,
count your loses and start back at step 1.
Avoid betting large sums on the long runs and you will keep ahead.
There will be countless small runs to make up for a possible 40 unit loss
but problably not enough to make up for a 270 unit loss very quickly.
So, be wise.
NOTE: Never increase your bet right after losing on a zero or double zero.