GMAT Strategy

Hi everyone, I'm sad to report that the MGMAT practice test slayed me.
My Background: I studied for about 2-3 months last year but stopped due to commitments at work. Now I am back studying again. I finish MGMAT classes next week. My Goal is to get a 680-700 score on the exam otherwise I will have no shot at a top 15 B-school

MGMAT Test 1 Jan '09 :440 (29Q 21V) (Last Year before studying)
MGMAT Test 2 March '09 600 (41Q 32V)
MGMAT Test 3 May 2 2010 530 (35Q 29V)

I feel horrible about dropping 70 points from a bit over a year ago, but I know my biggest weakness is time management. At one point I was 18 minutes behind on the verbal section and had to guess on the last 11 problems. It takes me 1.5 minutes to do Most SC, but I take around 3-4 on CR, and about 10 minutes on each Reading comp..
My biggest weakness today was the Reading Comp, As i got 4/12 correct (i had to guess on the last 2 passages since I had no time to read them)

As far As Quant, I'm generally ok with the material, but if I dont go over it I tend to forget it after a while. So when I took the test today, I didn't remember some of the stuff I studied 2 months ago (Mostly # properties, equations)


Now that I am finishing MGMAT courses next week, I would really appreciate it if any of you guys give me some advice going forward. I'm really desperate at this point to get a score in the high 600's

Here are some of my ideas:

• *Go over each of the MGMAT guides at least once
  *Verbal to Quant study ratio of 2:1
  *Do every OG 11 quant problem 2-3 times each.
  *Read Powerscore CR bible and Kaplan 800 (not sure if I need to do these as well as the MGMAT stuff)
  *Skip a few problems in the middle of the test if I see im going too slow. So I wont have to guess on the last few

Thank you,
Paul