my two cents

i would always use eros as a data point, not my only one, but one to provide info to validate authenticity.

Memphis offers free ads and Nashville's are cheap (I want to say 25 for a base ad) so probably couldn't hurt. I've been told most ladies really only need TER, P411 and another southern site you're aware of already that I can't say here.

I usually get one client every couple months off Eros in Nashville, when I have it active.  I only run an ad when I am trying to meet new clients.  The nice thing about the clients I meet from Eros is that many of them are traveling businessmen and once they meet a provider they like in a town they visit regularly for work, they will see her over and over.  So I do get some repeats off Eros ad clients.  This makes the $25/month (which I only maybe activate 3-4 months out of the year anyway) worthwhile for me many times over.  In general I kinda don't like Eros at all but I do find it helpful in Nashville.

If you're okay with last minute bookings, or okay with them sometimes, depending on the circumstances, the Available Now setting is helpful in Nashville for those traveling businessmen who aren't hobbyists, have no idea about TER, and don't think to book in advance.  I live 90 minutes away from Nashville but sometimes when I'm already in town to see someone, go grocery shopping, attend an event, etc., I like to turn on my Available Now and can often meet a new client while I'm in town from Eros.  Much more safe and effective than BP for that sort of thing.  But it can also easily turn up nothing.