Airshow settings for 5 d mk3

[marky.b]

Recently upgraded to the mk 3 so I'm still learning the auto focus system
Off to the airshow at Blackpool ,
Wondering on best af settings to use
Obviously ai servo , but which case setting is best ?
And better to use singe point af , expansion 4 or 8 or all 61
I suppose I can practise early on
But don't want to mess up on Vulcan and typhoon

 

[merv]

Probably better using 4 or 8 points because its processed quicker and the subject is moving predictably. Shutter priority slow for props and fast for jets. Auto ISO also. We had Reds last weekend and Vulcan on Saturday before Blackpool in N Ireland. Merv