I've been CO washing for almost a month now, and I remember after the first time I did it I had one of those, "where have you been all my life ??" moments. My washing method is almost actually CCC because I start out washing my hair with a deep moisture treatment in my hair, that I had let my hair soak in the night before, wash it all out with a clarifying condish, then condition my hair normally. I haven't had any issues with build up when I'm using this method. I clarify every 8-10 days. I use my the VO5 vanilla mint tea clarifying conditioner, and I love it.