I "resurrected" this thread because I just returned from a 3-day excursion where I used my 7DII (about 5000 clicks) and I had an issue that made me seek service. The main wheel was not always working. Fortunately it worked for 90% of the time. I was choosing the shutter speed with it and I didn't have to change it constantly. Of course I would have it serviced - with the repair cost being about 150 euros - but this reminded me of its possible succession. Its shutter count however must be below 80K so a lot of life there. I will ask them to let me know.
