User blog comment:OceanSushi/A Mini Research on the Optimal Maruyu Batch Size/@comment-26154973-20160224100353/@comment-26154973-20160225074939

And why would devs do so, I don't know, but 1.5, 1.75, 1.5, 1.625, 1.6 would look suspiciously like an artifact of 1.6 return, in other words, failure/success values (which we know for sure) geared towards 1.6 return, so might as well adjust rates to have exactly 1.6?