Same here. I’ve gone up to 18+ months but that’s when I start to see tuning problems, or just plain dead sounding. So I schedule my annual browsing trip to the local guitar storeIt's a cute gimmick but humorously I change strings about once a year on most of my basses and as an academic I do it in the summer--did four of my basses this past weekend. Honestly a lot of the time it's just an excuse to clean the bass, polish the frets, oil the fretboard, etc. all of which is easier to do when the strings are off.

