Interesting stuff, thank you for sharing great aircraft shots.... How did you feel the AF was on the 70-200 with extenders ? Vs the 100-400, would you say the 100-400 IQ matches that of the 70-200 with extenders ?

I've been itching to get both 70-200 & 100-400 but compromised on a second hand 70-300 at a great price, I'd seriously consider trading the 70-300 for the much anticipated 100-400 MkII, but feel the 70-200 would get more use generally. Opinions welcome ;-)