A couple of updates on 1 and 4. The noticed lag seems to occur only when the camera comes out of sleep mode and only with the 300mm f2.8l is II. All other lenses I own snap right to business. It also seems more jittery. Canon suggests tweaking the tracking sensitivity down a bit for this lens and see if it calms down a bit. Still a work in progress.
#4 required more tests side by side with my 5diii and a call to canon. The zone AF issue appears to be a result of having more AF points on the 7d2 than on the 5d3. The zone is also larger on the 7d2. Careful tests between the two show similar issues of not locking on forground subject. However on the 5d3 this is masked by the zone having fewer points and therefore less info to lock onto something else. 7d2 behaves more like 5d3 when the foreground subject is about the same % of AF field as on the 5d3.
It's not a bug but just the camera trying to do what it's supposed to do. Canon will report it for investigation to see if tweaking the algorithm is needed.
#6 I'm having good GPS response. Need others to report on their experiences. I suggest when it's first enabled to let it update every second, then once you get a GPS lock and leave it enabled, set it to update once every 15 minutes or more often when you go on site. In the bag set it to the maximum setting to save your battery.
All of the others, please share your experience with these configurations so we can determine if these are systemic issues or one offs. Canon does pay attention to reports but we have to contact customer service to get it in the queue.
OK Here is a summary of issues we are tracking for the 7D Mark II:
1) Fraction of a second AF lag(lock) on half press (w/300mm F2.8L IS II)
Still looking for confirmation and a repeatable process
2) Shutter not firing 2nd volley when rear AF-ON set to AF-OFF and pressed first
This is confirmed and likely fixable with a firmware update
3) Manual AF point selection is retained seperately for each AF mode (can default be set back to center?)
THis is confirmed. Still looking for a workaround
4) Zone AF not always locking on closest subject
This is confirmed by several users. Inconsistent forground lock. Needs fixing.
5) 3rd party flashes not exposing properly when used as a wireless slave.
Looking for more tests. Does not seem to be an issue for Canon flashes.
6) GPS does not seem to work reliably
Long delay to get GPS to work when new out of the box. Could be normal as GPS's often need more time initially to find themselves on the globe. More reports needed on how GPS is operating for them.
Some of these looked like iTR'ish like symptoms but with iTR off problems persist.
IF you have anything to report on any of these or have any new issues to report, please share.