Hi GhostA,
With your Quant Scaled Scores, you're likely pretty good at straight-forward "math" questions, but you're missing out on a lot of "strategy" points (especially DS questions), you're likely making mistakes on "gettable" mid-level questions and you might have a pacing problem (but I can't tell for sure from the information that you've given).
When you review your CATs, in the Quant section:
1) How often do you get questions wrong because of a silly/little mistake?
2) How often do you get a question wrong because you don't know how to do the math?
3) How often do you get a question wrong because it's too hard?
4) How often do you spend more than 3 minutes on a question?
5) Do you have to guess on a bunch of questions just to finish the section on time? Do you ever leave questions unanswered?
For most Test Takers, a "chunk" of missing points can be found by fixing the little mistakes in your "process." If you want to earn a score in the mid-40s to high-40s, then you're going to have to push back your Test, invest in some new resources and learn/practice Quant strategies and tactics.
GMAT assassins aren't born, they're made,
Rich