I did it that way for at least 3 years (with a comb, not a brush, tho). Sprayed it with some spray gel and combed once more. Never had a problem with the curl bouncing back again - I would wear it like that at least 5 days a week before I got my hair cut!

Stacy
3a/some b, med/high porosity, med texture

My current HGs:
Co-wash: Suave Naturals Coconut, VO5 Strawberries & Cream
Conditioner: Deva OneC
Leave-in: Shea M, Deva B'Leave In
Cremes: CIAB, pink Boots
Gels: BRHG

CG since 2/07 and loving it!