Temp and humidity should be reduced as the flowering period progresses, keeping 55% for all of flower along with 80F will be a large contributor to the fluffy bud, last 2-3 weeks should be no higher than 40%, coupled with cooler days and colder nights. The plant adapts by increasing density...........I like to think of it like snuggling up to keep warm, the plant looks to remove the pockets of cold air between the airy flowers, kinda like a pre-emptive measure for winter.
Subtle.