if you see these numbers before could be a quad coming........ or if a quad has hit......watch for one ...

0000 = 5858

1111 = 6969

2222 = 7070

3333 = 8181

4444 = 9292

5555 = 0303

6666 = 1414

7777 = 2525

8888 = 3636

9999 = 4747

also consider these in the cash 3 and pick 4.......example  if you see 07x   in the cash 3   you better believe double 2's are coming    back test and see for your self...good luck