Hey Tryphon, So mine runs all the way to max all the way up or down, and yours seems to intermittently works but its kind of rough, and its hit or miss each time you apply trim correction...hmm...I'm actually sitting here wondering if I should go into controls and check the ff tune or axis controls even though they are hot keyed to the keyboard. I almost feel like the increase and decrease buttons when pressed...become sticky keys. it activates, but then refuses to let go after de-pressing it. I have 2 versions of DCS, one on Steam ( 1.5.6 ) and the other ( 2.1.1 I believe ) on my E: drive ironically this issue happens in both versions.