I consider myself modified CG only because once in very blue moon I'll use a non-sulfate poo to scalp wash... I try to avoid silicones at all costs, but I still sometimes think I need an oomph from a mini-poo. I usually clarify by other means though. Can't hurt to make sure all the build up is gone though... I dunno.
However, I must say, I did this today and my hair reminds me of what it was like in the pre-CG days - more wavy than curly, sort of puffy and unmaneageable... I don't like it!! And back then, it was every 3 days or so... the waiting for my hair to "normalize" itself again. I'm so glad I'm off that boat.
Anyway - generally I'm a no-cone condition washer. It's a good life.