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.
F - N/LP - NE - MD -- 2B/C
Tropical climate/high dews routine:
Low-poo: BROO IPA, YTCukes, Original Sprout Natural Shampoo*
RO: G SaS*, SSI Okra*, MillCreek Biotin, EO Keratin
LI: G SaS* or SSI O* or none
Styler: FSG* or Volumax Mega
DT: EVCO (rare)
PT: iagirl's gelatin*, SS PT*
Experimenting with: Ouidad CC gel
* = I love it!
Silicone/Sulfate free since 2010.
iherb discount code: CFN646