How do I find my natural arm slot considering I am always aware of what arm slot I am using?
Throw a football. Try throwing it as far as possible. Keep note of how your arm throws. Sounds dumb but see if it works.
Pick up a baseball and just have a catch with a friend or parent. Talk and throw. Don’t think about it. That will be your natural arm slot. I do this when I coach younger kids. Just a throw and catch.