wildlife AF advice on a 40d

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Hi all,

I recently bought a tamron 70-300 VC USD and since there is a decent amount of wildlife in my area I thought I'd give it a shot.

I'm somewhat uncertain however what the best strategy is in advice regarding AF on my body. Ive never used anything other than single shot-AF (center point/recompose).

Most stuff Ive shot was moving targets (eg. deer). The 40d has only 9 AF points, and since I'm in thick forests, when Ive tried to use servo-AF it seems to just only use the center point and often focuses on objects infront of the animal, such as a tree or branch. Plus since there is no time to recompose, Im not keen on center point AF anyway.

so Ive now actually kinda given up on AF and just decided to keep the lens on manual AF near infinity, then I can always slightly tune the AF as needed.

Is there a better way for me to use the (relatively limited) AF of the 40d? how do you guys out there do sports or wildlife? all AF points, or center only? AF-servo, single, or auto AI?
 
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