Maybe it has to do with the fine-ness of your hair. I'm a fine-hair person too, and plopping more than about 5 minutes winds up with a flat top and weird smushed waves.
2a/2b, fine and thin
cleansing: BS/ACV rinse weekly
PT: Gelatin PT
Conditioner: Desert Essences fragrance-free
Styling: LOTD Aloe