Hey!I guess I can't be of any help to you right now. I'm ordering a 300 2.8 II today ...
The only way to cure the "GAS" is go bigger and faster or STOP visit CR site
I'm getting a battery grip for one of my 5D III, since I can't afford 1D X.
It's a beautiful day in California, I'm going to test drive my 300mm f2.8 IS II at local zoo today.
No more visit local Sony Store until Jan 2014
That's not a big deal it's just a month away! I do not know why I feel you ... cheat somehow