I think much depends on the condition of your hair. My hair is pretty healthy right now so the occasional sulfate or cone is doable. That wouldn't have been true for me a few years back when I started. After years of blow drying and daily flat ironing, my hair was heat damaged, making it very dry and fragile. It took some time to nurse it back to health. Using cones or sulfates during those days would have just prolonged the process. Like blow drying or heat styling, you just gotta be careful not to use them to the point of damage. It's kinda like Snickers bars. Once in a while doesn't blow the diet but everyday and I'm in trouble!
3B, fine, normal to low porosity
Modified CG since June 2010
HGs: FSG, anything with glycerin, Tresemme Naturals conditioner, Curls Like Us cloths, satin pillowcases.