Pick any 3 even chances, i.e red odd hi, bet 1 unit red, lose?, 3 units odd, lose? 7 units high, lose? pick three more e /cs
start again from one unit. A win at any point in the progression, return to the start with 3 new E/C choices, say black,
black, even, at one unit , 3, 7 etc. No need to wait for spins and no need even look at previous results.
The best way is to pick 20 or so '3' combinations of e/c, write them down, R B H. O O E, L H B etc.
Test on random.org