Since you're coming out of the shower with already detangled hair, it's fine to add a leave in conditioner and/or gel and use a wide tooth comb (gently) to distribute product. What causes damage is combing dry, with no added product to provide slip.

On my hair, using a wide tooth comb to distribute product after a shower promotes clumps (which my hair tends to do on its own somewhat) but does pull out some curl. My 3a pieces look more 2c, for instance. Since I usually want curl, I scrunch to reform curl pattern on days I use a wide tooth comb. I've never had it cause frizz on soaking wet hair. It does tend to smooth out any existing wet frizz I might have and corral any shorter hairs into clumps where they should be.
CG since 11/2011
2c /3a F /Mii, low porosity

Winter Products /Routine:
Clarifying: Herbal Essences Tealightfully Clean
Low Poo: Renpure Luxurious Argan Oil
Co-washes: Suave Naturals Tropical Coconut or Daily Clarifying
RO:
Tresemme Expert Selection Perfectly (un)Done, Cure Care, Suave Tropical Coconut or Daily Clarifying
LI (if needed):
Tresemme Perfectly (un)Done, Renpure Brazilian Keratin Straightening (old formula), Cure Care
Stylers: HETT, AIF
PT: IAGirl's as needed