Which XBox 360 Joystick?

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My Saitek AV8R also has a 'lean'. Unfortunately, there is no software calibaration as for the PC. I took some measurements of the Sticks pot values across the centre point and they are not equal. I will be looking at the possibilties of calibrating the stick itself some time shortly. Also, from what I have read, a spinning propellor exerts a force that will give the aircaft a tendency to roll so it may not be an issue with your stick (if that is correct).