I think only somewhat close comparison would be if someone had used a non conforming club for extra COR (hot clubface) or something that can be used consistently over a period of time all the time for an advantage.
Or one of them rangefinders that give you slope adjusted yardage. IDK.. just taking stabs.
I'm wondering how your Blue tees would have a lower Slope but a higher CR than a Blue/White (shorter?) combo, I don't think I've ever seen that before. Beyond that, I'm wondering how you went from the equation for Course Handicap, which calculates the numbers shown in your Index column, to get the Course Handicap column. To me, the Index column numbers should simply be rounded to get Course Handicaps of 0, 4, and 7. That's also what I get from the USGA Course Handicap Calculator page.