Repeat contact numbers much better than I expected for 21/42/100

I'm installing a Madass rear hub and replacing my final drive too. I was leery of going with the 42/21 combo already on the bike as integer ratios can lead to terrible repeat contact numbers, I learned that the hard way on a Ducati when I went to 42/14/102 (that resulted in noise, vibration, and very rapid wear)...however chain length is also a major factor and on my Norton 100 links is OK despite the 2:1 ratio and the repeat contact numbers are good
Here is a screenshot from Gearing Commander, the 1st column is for 42/19/98, the next for 42/20/98, the 3rd for 42/21/100. (for the chart on the lower left corner)