It's a misconception that you have to use your arm to play full area. Cookiezi didn't use his arm and he used full area. https://www.youtube.com/watch?v=hilDUKUOlbYcheezstik wrote:
The difference between full and small areas on tablet is your grip / having to move your arm as well gets changed. I would love to use full area as it is objectively better, but I personally don't move my arm, and only move my wrist, so for me specifically and others with this problem, using full area would actually make them worse.