GMAT Strategy

Folks,

I have been preparing for about 4 weeks now, on and off. I had been waiting to assess myself before scheduling an exam date. Thus far, following are my test scores (none taken with AWA).


GMAT-crack free test 615 (Q49,V20) - Nov 30
Kaplan CD CAT1 570 (Q40,V28) - Dec 5
Kaplan CD CAT2 570 (Q39,V30) - Dec 5
GMATPrep Test1 700 (Q49,V35) - Dec 17

I just finished taking the first GMATprep test and haven't reviewed sections yet. I committed 11 errors on Quant and 9 on Verbal. I somehow still do not understand why my Q score is so much better than V. In the Q section I got 5 wrong out of first 11, while I had 4 errors in the first 11 in the V section. I think I should not worry about algorithms!

Since I did not want repeat questions on the GMATprep tests, I haven't touched the OG yet. I've mostly studied verbal sections from

Princeton
McGrawHill
Manhattan SC
6 chapters from LSAT logical reasoning bible

My questions are the following:

1. Should I go ahead and schedule an exam date in 3 weeks ? or should I do it sooner.
2. I plan on going through OGs 10th, 11th and 12th edition. Is there something else I should be focusing on ?

I am an engineer and was very confident of my quant abilities, but I found myself struggling to finish the GMATPrep test. I should admit that I haven't practiced quant questions at all. I would like to raise my V score to 40 levels - any recommendations folks, besides timed practice ?

In the V section of the GMATPrep my error count was: 5 SC, 3 CR and 1 RC

After the kaplan tests I was really worried about my verbal speed, but I paced well on the GMATPrep. And yes, the RC is definitely more comprehensible than the ones in Kaplan CATs!

Update - Dec 30, 2010

I did take 3 more CATs in the last 3 days with following scores -

PR CAT 1 660 (Q48, V34) - 11 errors in V - Dec 29
PR CAT 2 650 (Q50, V31) - 13 errors in V - Dec 30
PR CAT 3 680 (Q51, V33) - 12 errors in V - Dec 30


I've consistently commited 3 errors in RC, 2-4 in SC and 4-6 in CR. I'm entirely focused on verbal section. I'm not sure how reflective these scores are, but I want to raise my V scores to the 40s. I definitely feel that I have improved in the last two weeks since I took the first GMATprep - however my V scores in PR CATs do not suggest so.

I think, I'll start working on OG now. Any feedback is appreciated. Also, if you have taken PR CATs please share your experience.