Here is explanation as to how I played:
TRACK 12 NUMBERS. (BET=L3A+L2A ELSE L12F)
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1 E E W opp of 3 odds @ spin 10,11,12 (l3a+l2a)
2 O -> O W l12a (same as spin2)
3 O O W ...
TRACK 12 NUMBERS. (BET=L3A+L2A ELSE L12F)
==============================
1 E E W opp of 3 odds @ spin 10,11,12 (l3a+l2a)
2 O -> O W l12a (same as spin2)
3 O O W ...