GMAT Strategy

Hello friends,
I am here to ask your highly priceless suggestions though i always have habit to go with my gutt.

It's been more than 8 weeks I have been following this forum. I have been giving free reads to following materials:

oG12 - half done
Sentence correction guide - done once, need to do again for 100% gain
CR bible from power score - done
Maths from MGMAT but dont need much preparation for it. Only DS is weakness here. - 70% done

I had 6 august as date for GMAT earlier, now I rescheduled two weeks ago to 2 sept, 2009. Though I haven't given up daily or every other day devoting about atleast 1-2 hours. Can't say if I am giving 100% after work but definite input to my mind.

I am certain of few things in my mind, if i devote good time for sometime and catch up speed. I am definitely a 700 scorer. I am not boasting but I know myself that I am average in Verbal but good in Quant as usual with majority of you. GMAT is more about your psyche that needs to set to correct address spotting with time and good mind.

I am appearing for a sampe test this weekend and based on that thinking whether to go ahead on 2 sept or cancel the test. After that I dont have time for another 3/4 months.

Only thing on my mind is don't want to mess up with score if it comes like 670 or so and then appear again for small difference which will create wrong impression and also to avoid the risk of second attempt for smaller hike of scores laters.

Business I am about to target are demanding average scores between 690-730.

Do you advise going for test at this stage when i have not even finished once whole OG12. I am left with about little more than 4 weeks. I am working full time but got only 3 days before exam that won't help much except two practice tests. Even that won't help me improve much. After OG 12, my only target is OG 11 and again doing OG12 with more stress on wrong and right questions again.

Thank you so much for reading my post. Feel free to write anything positive or negative..lol..that won't impact me too quickly. and a thanks for every post