GMAT Study Plan: go from 650 to 700+

Hi, can you guys help out, have my GMAT in 8 days. Target Score 700 plus

Following are my scores...
1. GMAT Prep 1 - 15 Jan 2010 - Q 47, V 32 - Overall - 640
2. MGMAT1 - 8 Feb 2010 - Q45, V 33 - Overall - 640
3. MGMAT2 - 14 Feb 2010 - Q 43, V 32 - Overall - 620
4. MGMAT 3 19 Feb - Q - 43 , V 33 - Overall 640
5. MGMAT 4 - 21 Feb 2010 - Q - 40 , V - 38 , 650 - Messed up on the quant section, but verbal performance improved considerably.
6. Powerprep1 22 Feb 2010 Q -49 V - 41 , 730 - Recognized a few questions from OG 10, so i'd say score is a little inflated.
7. MGMAT5 - 23 Feb 2010 - MGMAT 5 Q - 44 V - 38, 680 - (without AWA) Continued to perform well on Verbal.
8. GMATprep2 25 Feb 2010 - Q - 47, V - 34 - 660 .. (with AWA)

I found GMAT Prep verbal much more tougher than verbal on the last MGMAT Tests, i.e. The correct answer was not as easy to spot on GMATprep as on MGMAT Tests. Is it because latter MGMAT tests are easier..Or my verbal skills have not exactly improved.

I'd say i have improved a lot, have begun to see patterns in the right choices, i am able to identify wrong answer choices quicker..Your input would be invaluable.

Edit: Just analyzed my performance on the verbal section, i made 4 mistakes, out of which 2 were silly mistakes in the first 20 questions (Q1,5,10 and 18), in the next 21, i made 10 mistakes (Q22,24,25,26,28,29,33,35,37,40).

I was a little slow, probably because i was overawed by the level of the questions, though in hindsight, they are very much like MGMAT questions (they did seem alot harder while taking the test though, i remember thinking to myself, this is much tougher than what i have encountered, ended up rushing through the last 15 - 17 questions and guessing last 2, one of which i got right). in the last few tests i have managed to complete the verbal section approximately 2- 3 minutes before the 75 minute mark. I have a hit rate of approximately 70 - 75 percent with 650 - 730 range problems.

I still have about 8 days before the exam. I sincerely feel its a question of tweaking a couple of things to achieve my target verbal score. What do you suggest i should do?