how does the value of low force feedback/minimum force feedback relates to %? In AC or RF2 and other, the minimum force feedback setting is a %value, in direct relation to the %value we can extract from the wheelcheck app to determine what out particular wheel need. In AMS2 we have a value from 0 to 100, is 15 equal to 15%?
"LFB" is 'Low force boost' (rather than minimum force), which boosts the smaller details, intended for the lesser powered wheels. The scale is just 0% to 100% I think...
LFB isn't a static value like min force is, where lower forces are always boosted to the %value you set. LFB can be used to make lower end forces stronger, so you can set FFB strength (gain) lower to avoid clipping in high force situations. You can read more about AMS FFB and LFB here: Automobilista - How the FFB works and what is new about it AMS1 and AMS2 use the same pronciple for LFB, although the balancing may vary a bit.