Good luck for sun.Yes, the little I've tried it today it didn't seem that slow. I still have to put my finger on the LCD and all, but alot faster than I've read. It's only a loaner from one of the girls that I will shoot on Sunday.
Doubt i'll have mine by then, going by what I found instore selecting the smaller flexizone option without face detect and in one shot mode it was actually fairly fast and accurate. I generally only use one af point on my slrs for the same reason.
Interested in seeing results.
I'll be happy to post some comparisons with the 5D3 though. The weather is kind of streaky here in Phnom Penh at the moment, the rainy season is coming, but hasn't hit us all out yet. It won't matter that much anyway, because I want a little bit darker style to these photos to fit in a theme. That's what I normally like also.