<p>Yes, kryptonsa36. I concur with you that success in CoAr research experience can make the performance in the CoAr classes irrelevant. However, it’s really hard to believe it’s a result from a “bad” student. “bad” as in receiving poor GPA’s. Yes, it’s possible that a student might receive a poor grade for a SPECIFIC class based on many reasons like you said. But, actually receiving a poor GPA means that you are actually receiving poor grades in most classes (at least in average), and you can’t really make up any excuse for this. If such “bad” student is still able to yield success research experience, shouldn’t the adcom feel some inconsistency in the application? It’s like saying you suck at all the discrete math classes but for some reason, you can yield significant research finding in cryptography. Or, you basically don’t understand Shakespeare (supposedly evident from class grades), but somehow you can write a good literary research commenting on his work.</p>