Update. A few weeks later ... kind: become less (. 1.5-2 hrs / day) ... function given 100% - Everything OK!
Update 2: a few weeks later, still can not complain ...
Update 3: 3 Months spaeter..Alles OK ....
Update 4: 7 months later: Left Button: 555 151 clicks / Right B: 61860 clicks / Middletown B: 3340 clicks / Thumb Button 1: 7661 clicks / Thumb B2: 78942 clicks / Total 706 942 clicks / Scrol WheelUp: 155892 Scrolls / WheelDown : 315608 Scrolls / Distance moved approximately 27672m - As I said, every day basically in Benutzung..Läuft tadelos ...