really i would think your hair would untangle, as it will gain oils from no sulfate. though you can consider purchasing a no silicon styler, like a slip conditioner, some are out there, these do not build up when they are cg.
i should read up again but i already have a good start i don't want to retrace my steps. maybe someone can help. we can cowash as often as we like, but i wouldn't consider a no sulfate poo being a mod cg. i think that is how we rid our hair of oils, by using the nopoo or some product similar.