Good work, though it has been done before.
Note 1: There are two "Tournament" green speeds. You posted the slower one, "Tour Master" speed, 130%. The other, "Legend" speed, is at 135%, 40.5 ft for the 30 ft scale.
Note 2: 1 extra foot for an inch of elevation is about true for very fast greens. It's less for slower greens and more for faster ones. Special care = paranoia when putting downhill on Championship greens!
Note 3: There are 10ft + 20ft scales on some putters, AFAIK.