For Critical Reasoning I read David M Killoran PowerScore LSAT and did all questions of OG and Verbal only official guide.
For Reading comprehension I did all questions of OG and Verbal only official guide.
For Sentence Correction, I read the Manhattan SC guide, and did all the questions of OG and Verbal only official guide and then i felt i was under prepared, so i did all the questions again but this time i read all the reasons why each option was incorrect, helping me to learn a lot of more grammar rules.
I spent about 40 hours on Verbal. I didn't study Quant at all but i am good at Quant.
Hope that helps, let me know if you have specific questions.