From the x chart,
1.locate doubles/triples or quarts draw history(start with last 5 recent),these are trigger points for eventual keys
2.Locate keys corresponding to the tigger points.
3.locate key corresponding key combos
4. add x option to the combos(Is optional,u can choose your trend ,some folks are fixed on L0123,M465,H789)
Note:The rule is old keys have the priorty before they hit or within the time frame. You change key to next oldest when 3 digits of key is out or key is outside time frame.
Time frame is how long you keep the key, this can be verified by backtesting generated keys and see their frequencies( a month draw test is just enough)
Frequency key test:By looking at chart, look out for how long a key hit and mark it as +1,2,1,6,8,1,2,6,2,2 ................etc, now your media number tells u pretty much how long to keep a key.
5.Combos and Waging:This is your choice, But I want u to verify the PREMISE of the keys, with that in place, it becomes more of patience and discipline. I say discipline 'cos the edge to win is so strong folks loose touch of the process.
After studying the keys(behavior,and hits), u find out is cyclic, the 10 base keys keeps occuring,the keys are part of the cycle,so don't treat them like digits(This helps u to avoid " this digits look good also feel",u don't need doubts when dealing with random digits. the cycle is not random,the rate of occurrence is where your keys comes in.
The goal of waging is to win big or constant small amounts ($100,200,400) frequently without breaking your bankroll,so with the key premise verified u tackle your x option, to win big sum, your x should'nt be more than 2 digits, eg if u have a key 3802,knowing the established premise of 3 digits coming, u go for 24 way permutation, this gives a sure one straight hit and 23 other box hits, but you need to reduce your combo triads if u don't have funds. See the triads for 3802 is 380x,382x,302x and 802x, with x is been at most 2 digits, I may have to reduce my triads to 380x and 382x and wheel it(Afterall wheel is effective with right digits!). Why not 302x and 802x?,because the generation of keys is in a sequential format(verify this by testing their behavior, u find out that for a hypothetical key 1234, 123x,124x is frequent than 134x,234x) and that the pattern 3802 is not 2083, so with this, u further reduce your combos.Read comments and reponses by members on this topic.
Lets look at the above data starting with draw 9113(D-5/3/12), your trigger point is 11, from chart 11 yields key 3802 , with triads 380,382,302 and 802.Now the corresponding x is your choice.You do the same for trigger points 99(D-5/4/12),22,55(5/5/12) and 99(D-5/5/12).
3802
0214
0914,3684
0214
these are your keys from oldest to recent,read above notes for informed decisions