I think I made a post about this a looong time ago when I was natural. From my memory I think if you saturate your hair will evoo before using the curlers, you won't get much frizz, or no it was curling waxx!! yeah that was it .
I would coat the section with curling wax (keracare) and that would prevent the hair from frizzing hth!!
*eta: my hair was most likely straightened before carusoing. I don't think you could get great results doing the latter