I think the crimp frizz may have two causes. Aside from suffocation, I strongly believe it can be caused by the hair being too dry.

Before I even knew I had 3a/3b curls, I only used sulphate shampoos that had no silicones in it and my hair was very crimped because of the dryness. Once I started washing my hair with more oils, the crimped frizz went away.
3a/3b spirals and the occasional ringlet
Normal porosity

Products I use:

Shampoo: Tresemme Naturals Nourishing Shampoo
Conditioner: Tresemme Naturals Nourishing Conditioner
DT: Matrix Biolage Hydratherapie Aqua-Immersion Creme Masque
Styling: Homemade FSG with Lavender EO & AVJ/water mist spray containing Epsom Salt, Lavender EO