1.) Axle-To-Axle Length: Right now I'm shooting a 33-inch ATA. But I'm curious to know about the benefits and/or drawbacks of long vs. short ATA's. Why/how does the ATA affect accuracy?

2.) Brace Height: Could someone please explain to me where/how to measure the brace height of my bow? An illustration would be great, cause I'm kinda slow when it comes to someone explaining stuff to me. Also, how does brace height affect accuracy/shooting?

The longer the ATA the more stable the bow will be or should I say the less chance you will have to cant the bow left to right which in turn will give you better accuracy

Brace is measured from the deepest part of the grip to the string.