Real talk, I wouldn't base your understanding of the material on scores. While it can guage what you need to improve on, its never going to be competely accurate.
No matter how high I score on practice exams, I always assume my real score is going to be lower. The last thing you want is to stop studying with the mentality that you don't have anything else to learn because your practice scores are real high. Then come time the DAT you score poorly because of lack of understanding the material.
I know it's not the answer you were looking for, but i just don't want anyone else to give you a reason to be lax about certain areas of study because they told you your scores look good.