My hair can feel dry no matter if I use shampoo or not if I don't follow up with conditioner and seal with a nice butter. That's key for me. A nice shampoo that isn't too harsh, a conditioner, and seal in moisture. Maybe your shampoo is too strong for frequent use?
My scalp needs shampoo to stop and prevent itching, so I shampoo weekly. I wash 2x to get a nice lather. And I focus on both hair and scalp.
Cowashing only with regular conditioner causes a lot of filmy buildup in my scalp and hair, which caused me a lot of breakage in past.
Wen products dried out my hair so I haven't tried any other cowashes specifically for shampoo replacement.
I never had a Komaza hair strand analysis, but based on the feedback received from so many who have on this board, I will never only cowash (like I used to) and now I use shampoo and protein weekly and clarify once a month.