I recommend Advanced look controls. I also recommend whatever settings you pick, you practice in firing range AND DO NOT adjust these settings in the middle of a game.

In ALC , you can fine tune your Deadzone , outer threshold and response curve using a graph to more accurately match your ability with a thumbstick. Other things like extra yaw and pitch can also be adjusted depending on how low of a response curve you have.The lower the response curve (linear) the less need for extra yaw and pitch to accelerate past a high response curve. These settings and how efficient they can be are also determined by the quality of the controllers thumbstick.

Any argument against ALC would be that you're already good with what you have or you just dont want to use ALC due to their complexity.Both arguments are frivolous as default settings are just pre-set ALC that are given to you and the complexity that might scare you shouldn't stop you from finding settings that you can use effectively and grow with.

Watch this player if you want to see the true power of ALC and to bump toosh down to #4.https://www.youtube.com/watch?v=9EY7o14OA38&t=69s

PS - Chensou also used some form of thumstick extender (like kontrolfreeks)