I am in the final stages of my preparation. I've been scoring 40+ in Verbal on all popular mock tests.
But I've noticed a probably strategical flaw in my approach to Critical Reasoning questions.
All this time, my CR accuracy has been around 90-95% till 700-720 level questions and thus I have never felt the need of reading any book on CR (Powerscore, Manhattan etc.). But recently, I notice that when it comes to tough questions, say 720-750 level, the accuracy drops to 60-70%.
So, my question is :
Is it necessary to learn the techniques of CR to ace higher level questions ? Does plain logic, which seems to be working just fine upto a certain level, fails after a point ?
Or tough questions are still tough with or without techniques, and the accuracy ought to drop in that range of questions and I shall stop worrying about it ?
Please suggest.