Wow! Well done Cam!
However I fear that many will find the number of different symbols used, including diacritics, to be overwhelming.
The fact is that ratios in JI compositions obey something like where the second most common ratio is used only about half as often as the most common, and the next used only a third as often, and so on. We used ratio statistics from Manuel Op de Coul's Scala scale archive in designing Sagittal—kindly provided by Manuel.
So a chart like this, while great to show what Sagittal can cover, gives a new-comer a false impression of what you need to learn in order to use Sagittal.
Would it be too much to ask you to also make a cut-down version that is a diamond of only the 13-smooth odd numbers up to 39 (possibly adding 45), and omits all spellings requiring diacritics, apart from the single right accent required to distinguish 13 from 35. This would show just how much can be done using only the Spartan set of 8 symbols. We would note that the right accents can be omitted if an error of 0.4 cents is of no concern. The 13-smooth odds to 45 are 1 3 5 7 9 11 13 15 21 25 27 33 35 39 45. Omitting 17 19 23 29 31 37 41 43.
Limiting to Spartan will mean that some squares will be empty, but that's OK because they will represent rarely used ratios such as 13/11 and 33/13. The ratio of two such high primes is almost as rare as their product 11 × 13 = 143. I calculate that this will cover about 70% of the ratio occurrences in the Scala archive. But this doesn't take into account how often a given scale is used for a composition. Scales containing more common ratios will be used more often, so the ratios notatable with Spartan may constitute 90% of ratio occurrences in compositions.
Another request is to do the same in multi-Sagittal, i.e. one-symbol-per-prime, 5
—using the symbols always in that left to right order whether on the staff or in text, since it corresponds to increasing size of alteration. These might be shown as alternative spellings on the same chart.
Yet another request is to make a version that uses C = 1/1.