Ok, I admit it - I never read my school's honor code. (MSU Law). Or if I did, I don't recall. I also never asked anyone for advice on how to kick ass because it just came naturally to me.
Just kidding, but I don't see the harm between what I provided and referencing a secondary source like Volokh regarding form.
OP wasn't asking for substance, he or she was just asking what a case comment should look like. If the writing competition didn't provide guidance on what a case comment should look lik, and apparently they didn't, how in the world would ANYONE ever be able to complete it without some sort of outside reference? I don't view that as cheating generally - asking for a topic, or for substantive analysis would be cheating, sure - but of course, I have no stake in this whatsoever.
An Airforce Captain, a fighter pilot, once told me, when discussing whether a person could get lasik to improve bad eyesight enough to qualify to fly, that he had his vision corrected to 20/10 - better than normal and great for VID'ing enemy planes from more miles away than his peers. "If you're not cheating, you're not trying" he told me. I'm not sure how that is relevant, but its about cheating and fighter pilots, so, profit?
And where would the line on a case comment be drawn? Is it cheating to use Lexis to lookup interesting cases? Would it be cheating to use lexis to view student article "Case Comments" as part of researching for the competition (assuming its not a "closed" competition with all materials provided)? Not to plagarize, of course, but to see how its done.
That last point sums it up - if its not cheating to lookup published student case comments during the course of the competition,
which it wouldn't appear to be if OP has to craft an original case comment from scratch, its not cheating to ask a general question about form here.
Actually, why didn't you just do that in the first place? Look up examples in Westlaw / Lexis / Journals?