The + or - is simply an indicator of which direction was detected during the assignment. The assignment itself shouldn’t have either indicator. But you want to make sure that you’re actually assigning the movement to the axis, and not a control that is intended for a button. If you have it correctly assigned, there will be an axis indicator and a Reverse Axis checkbox. In the case of my original X52, throttle forward brings the indicator left, which seems backward, but it works correctly in flight this way.
