Cruise missile

Three months in and I’m no closer to working out how to adjust the cruise control in single km/h increments. Once set, any press of the up/down switch on the steering wheel bangs it up or down to the nearest 10km/h. Given the few percent speedo error and the willingness of cops to turn a blind eye to those first few kays over the limit I’ll typically run it 6-8km/h over. So, it’s cancel the cruise, bring it up to speed and reactivate it.