p.4 #3 · p.4 #3 · Poll: Are you using battery grip on your Nikon body?
I recently started using a grip with my D750 after shooting my first wedding. Nikon reduced the size of the camera in part by narrowing its grip and reducing the space between it and the lens flange. As a result, I can't relax my fingers as much between shots and after shooting for 8-10 hours my right hand was fatigued and sore for several days.
A Meike grip now provides additional lateral clearance below the lens mount. It also provides more vertical clearance so I can spread my fingers out while shooting and stretch my fingers between shots. My hand felt much better at my next wedding even with the extra weight and bulk.
I normally shoot portraits and will forego the grip, but will continue to use it for longer shoots.
p.4 #4 · p.4 #4 · Poll: Are you using battery grip on your Nikon body?
I think the best battery grip design was the F4/s. Solid integration with camera body(can't remember any issues with it), remove it when you don't want the bulk. I have no idea why they don't use similar design again.
I have never purchased a battery grip for any of my Nikon DSLR. Since they usually either offer no important feature to me (weight/balance or vertical shooting) or requires different kind of battery, charger(like higher fps for D700/D300) that complicate the logistics.