Thank, thank you, guys!
Re: AF-I am all time fighting with always not good enough AF. I had D600, later 610 and trade it for D750. It's improvement-yes, but still fare away from ideal.
Maybe D500???
I am still learning how to used AF!
And one more comment: normally I am using ""Big Gun"" -200-400 with TC14III, now it is in the service-is 10y old and once I spill sweet tea, very complicated tusk-but in mean time I was using 300+TC-because this set is much smaller and lighter was possible to shoot deep from the bling, with big lens was always protruding outside.
That all rambling of Old Fart about shooting....