I'm in the process of drafting my SOP right now and am facing a dilemma about whether to mention my advanced graduate courses in my SOP. I've taken these courses with Ph.D students and had found them pretty challenging with many of them involving term projects as well. The problem is that I screwed up my grades in a few of them like my intro to QFT course (got a C). I am trying to retake some of them but they won't show on my transcripts till next semester.
I wonder if I should even bother mentioning that I took advanced courses in my SOP. I'm afraid it might attract attention to these bad grades and hurt my application. To put it in perspective, I haven't mentioned much about my academic record and coursework in my SOP with a majority of it spent on my projects.