I have better results than the Dominicans and I replicate their technique but have kind of my own technique.
I first sometimes apply conditioner to dry hair for about 20 mins with heat (under a hooded dryer) then rinse out followed by shampoo. ( Sometimes I omit the first step and start off with shampooing the hair and then applying the deep conditioner followed by heat).
Then I'll condition it again with a deep conditioner with heat again for 20 mins.
I then rinse out the conditioner then shampoo either once or twice followed by towel drying the hair. I don't rollerset because I have trouble keeping the rollers in tight and it takes me forever because my hair is natural so when it's wet it's puffy and curly.
So after I towel dry for a few mins I take a round brush and blow dry my hair in sections on high heat for the roots and medium heat for the rest of my hair. Now this process doesn't get my hair straight, it more looks like a semi straight puff.
I then flat iron my hair with a ceramic flat iron that I bought from sally's. My hair comes out so straight, airy with so much volume and body. I get some many compliments on my hair and for a few months I've been doing a friends hair because she likes how mine comes out. I also had a few other friends ask me to do their hair like how I do mine.
If I remember I'll take pictures this weekend when I do my hair. I'll try to take pictures in steps to show the process.
Here is the link to my fotki album
http://public.fotki.com/LovinLayers/. Feel free to check it out.