The dreaded first exup service..

[PieEater]

Once a month is probably a bit excessive but I guess it depends on your usage. My bike is garaged and used for leisure throughout the year probably doing about 3-4k, I service the EXUP once or twice a year. If I leave it 12 months then the parts are definitely dry but after 6 months there's still signs of copper grease especially on the bolts, so about 9 months is probably optimal for me. Once I run out of copper grease I'm going to invest in some ceramic grease which in theory should last a bit longer and do a better job.