I don't really see how that girl is not a curly since I guess that wouldn't make me a curly either but anyway... I find rake and shake works better for me if I want to have complete product coverage but the curls are more separated. I also get less frizz than I do with scrunching in product. Im not a 3c but I would imagine it would work, but your end result might look different. There are also videos of the technique with other curl types on the ouidad site.
Sorry can't figure out how to do a signature on the iPod...