I'm honestly a bit shocked that the B-29 even registers on your chart, given how cautious all of the ones I've seen are.
Also, I have a request; would it be possible for you to chart up the effectiveness of the Yak-3 vs the 109K, 190D, and La-7 (would also include the P-51D and Spit XVI, but I think that the numbers are skewed by noob usage to such a degree that results would be... irrelevant)
Specifically, I'd be interested to see how it compares for overall fighter vs fighter performance (as measured by kills on fighters per deaths to fighters) and how many times they've killed/died to each other.