That's why I put that first in my list - recs, recs, recs.
Yes, you certainly have a better perspective than I; from where I'm sitting up here North of the Mason-Dixon line, it seems like recs are portents of much larger differences when it comes to how Greek life fits into the culture.
I wonder if another measure could be that there is a percentage of PNMs who will transfer to a different school if they don't get one of their choice sororities?