Might this DC method work for 4a hair?

in Hair Type 4
Here's the recipe. It says to DC *then* shampoo. Would there be any benefit to doing the DC if you shampoo it out? I'm thinking this would be more for the 2 hair types.

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- Anais Nin
3a, fine, thin, normal porosity, no dye, greying naturally
Devacurl Weightless Waves Low Poo & Conditioner, B'Leave-in and Ultra Defining Gel
Curl Junkie Spiral Lotion in low humidity
Ouidad Advanced Heat & Humidity Gel mixed with UDG for high humidity
at home gelatin PT
Hask Argan Oil Deep Conditioner
CoWash: various
DT: various
Leave-in: 100% Mafura butter, Shima Hair Leave-in
Stylers: MoroccanOil Curl Defining Cream, various
Spritz/Sealant:not now
*experimenting and loving it!