I also experienced that auto-lean is not optimal.
I think it´s mainly designed for people who play just occasionally or with a gamepad, etc.
For leaning I am using my programmable mouse sidebuttons.
It´s much easier to access lean function with my thump ( side-mouse-buttons ) instead of keyboard keys.
There are a lot of mice out there on the market and i tested a lot of them in different computer hardware stores.
The most versatile mouse for me is the Razer Naga.
- It has very well ergonomics
- It is very precise
- has 6 programmable sidebuttons for the thump which are really comfortable and quickly to press
- beautifull illumination in red
-The only negative is that it is designed only for right-handed people