I have been shooting small bore and high power silhouette for more than 30 years. I can still remember the first time I adjusted my scope for wind during a match. As a spotter you will learn to read mirage.
A lot of rifles in the "Standard" class have 2 oz triggers. "Hunter" class are allowed no less than 2 pound triggers. 1/2 minute dots and at least 24 power scopes are common as are target knobs. We crank them on every change of distance.
By the way be ready to be beat by women and little girls.
I had one kid tell me, "this is easy, all you have to do is but the crosshairs on them"
Be brave every one can see how well you are doing, however it is instant gratification CLANG!
The idea is doing everything the same for every shot and getting your eye, brain and trigger finger to work as you come on to the spot on the animal.
AIM FOR A SPOT ON THE ANIMAL NOT THE ANIMAL.
Fun stuff.