How accurate is GMATFocus ?

[sudipto]

Hi folks - I just took the three GMATFocus tests and found them to be quite useful, albeit a bit too expensive. My scores are the following:

GMATFocus I (15th Nov) - 43-49
GMATFocus II (22nd Nov) - 47-51
GMATFocus III (26th Nov) - 47 - 51

The surprising fact is that there is a HUGEEE percentile difference between
47 (79%) and 51 (99%). Thoughts ?

Thanks,
Sudipto