Just an method I play sometimes.(European Wheel)
Wait 15-20 spins without hit any of this angles, from the last number spun, always.
30 degrees, 60 dg, 90 dg, 120 dg, 150 dg,180dg right side and left side from the last number.
Bet 4 or 5 numbers around the angle have missed 15-20 times, with progression.
Have to bet the numbers from the angle, not the same numbers ,
so change the numbers to bet each time, hunt the *angle* numbers.
Ex. :
last number 21, bet 36,11,30,8,23, if angle 90 right side have missed x times
next spin loss , come number 9, bet now 3,26,0,32,15
...etc.....
good luck.
not required to wait only is safer, an *angle* can sleep longer too, as any number or street....,
but seems not sleep so much, once I have lost on spin 28 (no wait) ,
angles 120 right side from the last number have missed , and decided to stop progression
( started from 0,20 on each number), stop loss. Anyway if choose any angles and bet
without wait ,I can tell hit fairly well , but again it is safer if wait some virtual losses.