OK. I have my GMAT on 8th of January. I have been practicing out of OG. I did all the RCs from OG and I get like one in about 20 wrong, which I think is fine performance. I took GMAT Prep 1 and score 93th percentile in Verbal. Most of my RCs were right (maybe i got 1 wrong in total).
But the problem I have is with Manhattan tests. I took two Manhattan tests so far and I got 80% of my RCs wrong. (I see this strikingly different result in CRs too).
Why is my performance so different in these two tests? I took all the tests in the same conditions and I did essays in all the tests.
Should I just ignore Manhattan RCs and CRs and stick to OG material or do you guys think I am doing something wrong here....

But the problem I have is with Manhattan tests. I took two Manhattan tests so far and I got 80% of my RCs wrong. (I see this strikingly different result in CRs too).
Why is my performance so different in these two tests? I took all the tests in the same conditions and I did essays in all the tests.
Should I just ignore Manhattan RCs and CRs and stick to OG material or do you guys think I am doing something wrong here....













