I am not an expert on verbal but I would do following!
1) Divide task in three parts, SC, RC, CR
Analyze your skills on each of this. And plan accordingly.
1) For SC
book is good, but I would suggest spending time understanding grammar in more details.
You can use following websites...
http://www.agriculture.purdue.edu/agcom ... by.com/64/
http://www.uottawa.ca/academic/arts/wri ... artsp.html
You can buy some book also such as Grammar Smart from PR
Spend hour on SC every day, 20-30 SC from 1000 and extra time to understand grammar.
2) For CR
Good Math somehow means good CR but still need to take it sincerely, understand how questions are created and do one LSAT-CR a day from 1000CR.
I used GMAT Critical Reasoning Bible, by David M Killoran, PowerScore. I like this book it helped me improve my hit rate by 20% or so.
3) For RC
I am not sure, I am still trying to figure out techniques but one thing I would suggest is to do few paragraphs a day.
This is kind of schedule I am planning to follow 5 days a week for next three week before D day.
I hope this helps.