Me, three! Mine's invariably wavier the 2nd day. I have thought the same as you, that while it's drying it's weighed down. I dampen and scrunch mine up the 2nd day, so maybe the spray I use contributes a little.
2a/2b, fine and thin
new wavy!

currently using:
cleansing: BS/ACV rinse weekly
PT: Gelatin PT
Conditioner: Desert Essences fragrance-free
Styling: LOTD Aloe