Agree with #143 and #144 that in a typical high school, GCs probably do not know their students (as far as college plans) anywhere near as well as GCs in academically elite private schools may. To the extent that a student could attract GC mindshare, s/he would have to stand out in some way – but not all students in a typical high school who stand out do so in a good way (e.g. the students in danger of flunking or dropping out).