(Originally posted this in the wrong forum)...

I took the last 4 weeks off from work to study for the GMAT. I signed up for Kaplan and completed must of the online material in the online syllabus.

There were 8 CATs offered and I took one every two days and spent about 4 hours reviewing each.

Scores ranged from 620 to 680 on the CATs.
The more recent ones were 660 and 680.

The Ultimate Practice Test: 640

I took the GMATPrep CAT 1: 710
then took the GMATPrep CAT 2: 680

Most of my verbal percentiles in Kaplan ranged from high 80s to 90s. Quantitative usually ranged in the 60s.

I took the diagnostic in the OG and scored Very Good to Excellent on almost all categories.

I finished the test with just enough time to spare on each of the two sections.

My final GMAT Score: 600 / 66%
Quanti (42 / 63%); Verbal (31 / 68%)

I have the following materials
- Kaplan Book
- Kaplan CDs
- Official Guide (that I did not use other than the diagnostic questions)
- GMATPrep Practice Test offered from mba.com

How should I prioritize my studying? How much longer should I set aside for studying?