Over the last quarter, I spent like 40 hours pairing with people (an average and median of about 3 h per engineer) and about 23 hours writing something like 25 articles. Really not much time over 12 weeks when you add it up like that, but it's had a marked effect. Still feels like very little, but I think that perception of mine is due to not being able to flash back in time to 1 January coupled with slow, incremental change.