I have really, really curly hair (dry too) and I use the PM Super Skinny Serum as sort of a "leave-in conditioner". I apply the PM Super Sculpt Gel over it. I love it! If you wear your hair curly, try this:
Towel dry your hair with a cotton t-shirt, gently (towels can disrupt curls), apply super skinny serum - I use about two dime size amounts, then apply Super Sculpt gel. This is a really light weight gel so, you can use a handful and it does not leave your hair weighed down. Let hair dry naturally. Most days I have nice round ringlets and little frizz.
I have not used the PM shampoo or conditioner.
Good Luck with whatever you decide...