Hey man -
I had similar problems with verbal - just took a 6 week course (private one-on-one for way less than Kaplan
/PR/etc...was only $65/hr) - and my score went up drastically. My tutor Sean from Tutor the People scored in the 99th percentile and was extremely attentive to the areas that I needed to improve on in order to achieve a high score. Plus they donate 5% of the cost to Children of Promise - a non-profit that mentors and provides tutors to underprivileged children - which is pretty cool!