X20/X20S and Ethos v1.5.0 User Manual
The available curve types are:
Expo
The default exponential curve has value of 40.
A positive value will soften the response around 0, while a negative value will sharpen the
response around 0. Softening the response around mid stick helps to avoid over controlling
the model, especially for beginners.
Function
The following mathematical function curves are available: