OP here. Your points about the convention for lowercase and aces on the upper-left are fair. However, the duplicated information in these grids was intentional. I was less interested in building a standard suited/off suited odds table (those are readily available) or a strategy tool, and more interested in a visually clear way to explore the "probability landscape". I find these grids with duplicate information easier to grasp on first viewing. I also like seeing how subtle suit-based patterns in panel 1 cancel out when you average all slices into panel 2. You can't show that unless you retain all suit information