GMAT Strategy

I want to provide enough info to get some help, so this might get kind of long.

I am a 28 years old graduated from a state college 7 years ago with a B.S. in Finance. I graduated with a 3.7 GPA, did well in the math/stats/business calc I took, but with a finance degree it is pretty limited. I have worked my way up to a commercial banker in my career.

I can get accepted into the MBA program at a university I want to go to with a 520 on the GMAT (I just heard some of you laugh). I know this is pretty low bar, but I am nervous about getting there, and want to stream line my studying with this in mind.

I have done alot of research here as well as other places. I have became very familar with the test and its format. I have purchased the Offical Guide, OG Verbal Review and OG Quanitative Review, Preston Cracking the GMAT, Manhatton Foundations of GMAT strategy.

I did the initial assesement for in the O.G. and scored average or above average in all sections. I then started working the problems in the problem solving section of the O.G. the first 30 questions seemed easy, from there my hit rate went down, once I got to 130 my hit rate was very low.

At this point I decided I needed to make sure I had the fundaments down so I am just about through the Manhatton Foundations of GMAT Math strategy, this book has been a good refresher, I am just about done with the book, and have completed all the drill sets with little trouble. At night I read the Princton Cracking the GMAT, kind of a weird book, but could be helpful for someone trying to score a 520..maybe?

My quesion is this: If you were me, and trying to score a 520, how would you proceed? Should I be concerned that the 130 questions and greater in the OG give me some trouble, or becuase of my 520 goal will I not see many of these? Is there any material/study guides you can reccomend that would be geared for a lower target socre, if I alread have them gerat, or if I need to get them that is fine as well. My biggest problem is I don't want to spend time working 700+ level quesitons when in reality I should be seeing 500-600 level questions.....right?

I have not completed any practice test nor have I done any verbal review. I know I will have some work to do on SC. I would assume I should do a practice test, but have not as I don't want to crush my spirit before I get some work in. I have probably about 40 hrs of study time in so far, and have focused on quantittiave only to this point. I study 1.5-2 Hrs per night and try to get 6-8 in on the weekends.

I have a working document that has key things I learn and feel will be important on the test and reveiw that weekly, I also have a document that has some straegies I have picked up from people on the forum, or in my review books.

This got very long...but I appreciate any help or direction, I will be back checking this for advice and will report all results right down to my actual exam.

Thanks,