I have lots and lots of fine curly hair. Its not coarse, its smooth and its very shiny and healthy. I have ringlets and I have frizz. I have some parts that will go stick straight and other parts that are such tight curls you'd swear I used a curling iron on them!
i've had short hair, like a stacked bob and it works great with curly hair. My hair gets a bigger curl the shorter it is. Right now its mid back and the curls are tiny and tight. If I cut it to my shoulders I'd have big ringlets like Nellie olsen.
I always have my hair layered. If I don't, its a pyriamid and looks ridiculous. So long layers for me that frame my face and around the back to keep the bulk from making it look heyooge.
You rknow your hair best. Look through websites like www.naturallycurly.com for idea's. The nfind a good stylist.