I am currently using the A77 ii with the 70-400 G lens for shooting high school sports. I am wondering if the A6300 would be durable enough to replace the A77 ii. I may shoot a 1000 pics per game using high speed drive mode. I understand I would have to use the LA-EA3 adapter if I wanted to use the 70-400 G lens. I'm not sure how the AF would be using the adapter and that lens for action shooting. Any thoughts are appreciated.