It was before Covid when I contacted them, but CM had very fast response to my tech question. I think I just used their online contact form.
so just ask what their suggestion is for replacing KA Bread flour, and is also thirstier than RR Bakers Special.
RR Electra Light, or RR Keith s Best might do.
Update: CM says RR Electra Light is the non-organic equivalent to their organic High Mountain but the RR Electra Light is malted. (Malted vs un-malted is another thing one needs to keep track of with CM flours.)
(warning: this is a bit of a rant. ;-) With some exceptions, usually there is no technical benefit to organic wheat flour. In general, I avoid it because organic wheat, like most organic crops, has less yield per acre, and more water used per unit of output, than regular wheat, so organic wheat is harder on the environment. Less yield and more water is also what makes it more expensive.