^^ I agree. They aren't supposed to be actual negs. They should be playful but not insulting. If a woman says something silly you say "did that make sense in your head?!" instead of just blowing it off like an AFC would. You're just giving them sh!t like you give a buddy.
True negs should only be used with extremely attractive women who have enormous bitch shields. In this scenario I've seen true negs work in your favor. It makes sense. If you approach a stranger and they are being totally rude to you (doesn't matter if they are a guy or girl) would you be nice to them?! Hell no. Women know this too. They know they are being totally ridiculous but this is how they get all of these guys off their backs. If you call them out on it you stand out.