10" or 11" brakes?

@72bluNblu I have all the parts for the 11x2 rear drums. I checked the wheel cylinders that spec for those drums, they are 15/16". Your post above says to run 7/8" cylinders, but that was for the 11x2.5" brakes. I am going to run a prop valve when I plumb everything in. Are these 15/16" cylinders workable, or should I look for the smaller ones?