Hi @cdedek
I too asked the same questions when I got into mouse pain behavior.
See this thread;
I use the MouseMet eVF system. There are differences between conventional filaments and eVF because the former is a static, single force, whereas the eVFs tend to be a dynamic ramping force. They’re not apples to apples comparisons. Also, some find the eVFs to be ‘less sensitive’ to detect changes but some argue that is actually rather an inaccuracy on the side of the conventionals