Thanks for all of the responses.
My target score is as high as possible - seeing as I made no improvement between the last test and this test (despite doing 250 practice problems), I'm thinking that the exercise wasn't very effective.
Quantitative has been a problem for me.
It does seem that timing on the quantitative section is a bit of an issue - I find myself running out of time often and rushing in the last few problems. However, if I go faster in the earlier problems, I might make some careless mistakes (ie. misreading problems, misreading answers, calculation errors, etc.)
What would be a proper balance for speed vs. precision on the quant section? In addition, how do you know when to cut your losses? I often find myself in situations where I say "just 30 more seconds and I can solve this!" and i'll end up spending 4 minutes on a particular problem.
Thanks again!