Ameya85
Hi Arun,
I am not sure whether you remember me, but we have interacted before on PG.

psychodementia is your nick name on PG right! I am iim_maniac from PG.
Anyway, personally I found Powerscore guide really useful. When I first appeared for GMAT in 2011, I had relied mostly on logic and common sense to be frank. But I wasn't able to get through anywhere. I might have made some mistake for sure. However, after powerscore, I am able to get accuracy levels of 85% on CR. I agree that initially guide asks you to remember a lot of stuff, but as you practice, it kind of becomes your second nature. Also, I don't remember anything else than whether can I bring in new info or not. I guess that helps. I'd love to hear your opinion though. I have my GMAT appointment on 22nd November 2014. Thanks again!
best,
Ameya
Hi Ameya,
I do remember you from the PG Forums

I am indeed the (in)famous Psychodementia

I am posting something I posted on quora earlier today (just being lazy - helps me save all the typing).
Let me give you some specific points based on the brief details I can see from your post:
1. Go Official: I see you are using a lot of unofficial material to study. What you should do is shun ALL other material except the official ones i.e. OG, Verbal Review, GMAT Question Pack, and retired GMATPrep questions. You have to get inside the mind of the test-setter to know what / how he is trying to trick you. This requires a LOT of analysis. It is painful. It is difficult. But it is worth it.
2. GMAT is a THINKER'S test and not a DOER's test. For example it is is NOT knowing what a noun or an adverb but to know when to use what. Let us sample this official GMAT question (try solving without looking at the right answer):
carbon-14-dating-reveals-that-the-megalithic-monuments-in-80506.htmlThe right answer based purely on how to differentiate an adverb from an adjective. That's all! Elegant but tough. This is a test that is unkind to those who mindlessly solve questions without analyzing and applying themselves to the question.
3. Internalize the Problem: I see you have referred way too many books/courses. This is a typical symptom where a student tends of EXTERNALIZE the problem i.e. the problem lies outside in some book, with some tutor/course. People misunderstand the GMAT and think you need to remember bucketload of things. GMAT tests you on very finite concepts. Let me draw an analogy with Quant. How many formulae do you really have? 100? 200? Is that what is tested? Or is it HOW to apply that formula in a real-world scenario? This is what the GMAT tests. This is what Bschools want. This is what companies are going to hire you for. Whatever you need to solve the question is already inside your brain. You just need to find a way to get it out

4. Test Scores are the symptom not the diagnosis. The 3-digit score you see at the end of the test is not the problem. It is just a reading on the thermometer. What is making you sick is what needs to be treated.
The scores you have reported - are these your actual GMAT scores? Are these some prep tests? Which ones? If so, then did you take it with AWA/IR? Did you see repeats? If not, then what was your split?
How did you manage your time? Did you guess where you needed to? How did you feel towards the end of the test?
As you see a LOT of question for us to know better

I would suggest you might need a personal tutor to help you analyze things better. However, make sure the tutor is someone who isn't going to waste your time TEACHING things you already know.
I hope the above analysis helps!
There are essentially 3 things that go right for people who manage to score in the 40s in Verbal. On the other hand, those who end up not scoring high seem to miss out on 1 of the aspects. I have written about it here:
https://gmat.crackverbal.com/gmat-prep-methods-760/Here is an interesting case of one of my students who got a V42 after being stuck on a V30s for a long time. He had written a pretty long post on GMATClub about this:
long-journey-to-750-if-you-want-it-then-make-sure-you-get-it-176698.htmlThat is a lot for you to think about

HTH,
Arun