Use ragged right margins. Don't right justify, in general. Justification smooshes down and stretches out the words, slowing your recognition. They are hard to read. Your brain processes words as units, and it depends on variations in size for shape recognition.
All caps obliterates shape recognition.
Nine out of ten are all caps, miniature point size, justified right margin, and sans serif type. That hell is the denial of the ordinary. That clean white paper waiting under pen Is the gift beyond history and hurt and heaven. Only calligraphers and your mother continue to use pen and paper these days, more's the pity. And Ciardi was right about nothing lasting.