notimetochill wrote in post #17847630
I got a chance to get a 7d mkii tomorrow. I also have a chance to send it back. Thinking of the 7d mkii or 70D + a macro lens (same money). How does the 7d mkii performs with Tammy 150-600? I got a 6d now and I'm happy with that combo. I've never used a camera with an af system like7d mkii so maybe your answer can help me in my decision about these two camera bodies (70D vs 7d mkii) I will also begin to shoot videos in the future.
Send me a PM and when I have time, I will share my experience with the pieces of equipment you mentioned. I owned all of those in the past, and still do some of them.
Let me just say in a nutshell that even though the 7DII is great for birds and works nicely with the Tamron 150-600, I ended up selling it because it was down to keeping either the 7DII or my 70D. In my equipment line-up currently the 70D has a bit more value than the 7DII had and thus won the "staying alive" contest against the 7DII.
I love using my Tamron with the 6D. When we visited family and friends in Hungary over the summer, I decided to take my 6D and 3 lenses to Europe out of my extensive list of stuff. Tamron 150-600, Canon 24-105L, and the 85 1.8. I was happy shooting storks, finches, etc. with the 6D + Tamron. Of course, a 7DII would have been great too, but the 6D was the winner as an overall performer on that trip, plus I didn't even have the 7DII back then 
The 70D is one of my most versatile cameras, and in some aspects even better than the 7DII for birds. That is the flippy and touch screen LCD. It's a breeze to compose super low angle shots on the beach or any other location where you might not want to or aren't dresses to lie down on your belly in the sand/mud. I shot with it on my honeymoon in Florida using the LCD and got some great shots with my former Sigma 120-300 2.8 OS.
Anyway, shoot me questions via pm and I'll answered them based on my experience.