I’m uncut too and only dry jelq. I think those of us that dry jelq and are uncut are less likely to discolour the penis. Take a look at chubby folks and where there thighs and arms rub - the skin gets darker and I think the same happens to the penis if you are cut.
Whatever works for you is the right thing to do. If you find dry jelqs easier and they work for you then do it. If you can’t do dry jelqs and wet jelqs work then do it.
I do also think that if you dry jelq you have to be more careful as it will not slip as easily as wet jelqing so you can put a hell of a lot of pressure on it and damage things easier.