Hey sweetie,
I have a regular CHI Flat Iron. For years, I wasn't the best stylist when it came to using it. After watching 3 or 4 flat ironing techniques on Youtube.com, I was able to get the hang of it. I have hair strands that are 12-15 inches long, plus my hair is thick. It's really hard to get to the new growth sometimes.
1. I always roller set my hair first. I roll my hair up like the Dominicans. I use a rattail comb to have a smooth set.
2. The sections are always about 1in x 1in
3. I hold the flat iron with both hands while ironing the hair. I stop at the demarcation point.
How long is your hair? You might need a smaller iron. I wonder if the WeeCHI is still available. :scratchch