Just to throw it out there, becuase I always do.
FYI, what was good enough to get SNA this yr, may (read "will") not be the same next yr or the following years. It is such a fluid thing and therefore changes almost constantly.
The best advice for a 3/C... BUST YOU A$$ and make you package as competive as possible, if for no other reason than if you don't get it, at least you know it was not becuase you did not try hard enough...
Just as an example, 2 yrs ago I got it along with everyone else in my class and all of us had real close (both plus and minus) to a 3.0 in aero eng. With those grades today, I doubt we would have all gotten it.