I haven't split-tested, but a decent proportion of my work is theory work, so it's sometimes hard to measure objectively (compare to measuring e.g. lines of cod

I haven't split-tested, but a decent proportion of my work is theory work, so it's sometimes hard to measure objectively (compare to measuring e.g. lines of code / money)- also my super productive times tend to happen in a burst of energy so I'll spend a couple of weeks doing groundwork at a more leisurely pace, and then when once a bunch of little trouble-spots are done, I go all in and work really hard for a week or so while the critical ideas are all in my head so I don't lose focus