Interesting question.
I cut two sororities immediately at the beginning of formal rush. I would have given them more of a chance.
I would have done a lot more research into sororities in general and the specific chapters before rushing. GC wasn't around back then - I wish it had been!
I would have shown up to see who invited me to pref before making the decision to drop out of rush. It would have been interesting to see if I had been invited back and where. Now I'll never know.
In the end, though, I probably would still have gone where I did.