Well , I went back 25 draws in each of 649 and Super 7 looking for the optimum number of draws to use to select at least 3 winning numbers per draw and this is what I found.

For 649 the optimum number of draws to set the software to is:

1,25,30 or 6,25,30. This was based on the last 25 draws.

1 hit 3+ correct for 13 of 25 draws or 52%

6 hit 3+ correct for 13 of 25 draws or 52%

25 hit 3+ correct for 15 of 25 draws or 60%

30 hit 3+ correct for 14 of 25 draws or 56%

For Super7

2,8,45 were optimum for the last 25 draws.

2 hit 3+ correct for 15 of 25 draws or 60%

8 hit 3+ correct for 15 of 25 draws or 60%

45 hit 3+ correct for 15 0f 25 draws for 60%

On these parameters there was never more than 2 draws without a 3+ hit.

4,7,9,10,12,13,18,20,30,40 game settings were all between 52% and 56% hits correct.

These parameters never went over 3 draws without a 3+ hit except 4 which went 4 draws once without a 3+ hit.

Some pretty interesting results.