This is exactly
how my oldest sister (very long curly hair like me) started diffusing, and eventually how I started as well and I love it!
At first I didn't like the crunch, but I've gotten a routine that works for me. I'd say plopping w/gel before diffusing is key to let your curls set.
CG Birthday: 7/25/11
Dense, Fine in front Coarse in back, Low porosity
Low-Poo: SM Moisture Retention Shampoo
Rinse Out: Tresemme Naturals
Leave In: ^^^^
Stylers: AIF, Natural Silks Curly Gel