None....
Man, this tech kak is beyond stupid. I saw one american come over to the kalahari with a huge scope and the idiot sits with his pot belly in a hilux seat on the back and takes a shot. Really. He could not even get out of the car.
No thank you. Go to the site first, set up camp and be part of it; then set out for the hunt. Leave this tech shit in the useless store where it belongs. A good knife, 303/308 is all you need; unless you are a friend of mine that still hunts with a cross bow (he graduated from 0.44 magnum).
You want to hunt? Come here. I will take you to the Kalahari for a 3 day stay; i promise you a life time of experience. Especially with hyenas in the night near the camp - yes - you need to take turns sleeping and keeping watch; the first time you hear a kalahari lion roar - i have seen people piss in their pants.