Which NG conditioner are you using? From the ones I've tried I think they're a little thick for cowashing. Most use a "thinner" or "lighter" conditioner like Tresemme Naturals, Suave Naturals, some of the v05 ones. I would keep the NG one as a rinse-out (RO) only. The SheaMoisture may also be building up and weighing down in conjunction with the NG cowashing.
2BC/f/II. fine - low/normal porosity - medium density - normal elasticity.

Currently using:
Low-poo: Jason Mango bodywash
Cowash: Cure Care diluted with water 1:1
RO: Cure Care, V05 Kiwi Lime
Styler: UFD CM (old formula), FSG + CNPF
PT: IAgirl's gelatine

light moisture, hydrolized protein, jelly stylers
guar hydroxypropyltrimonium chloride, sulfates, jojoba oil
Neutral on cones.

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