The way it works in DCS's:
- the game puts out mainly the Spring effect and Periodic effect (vibration during stalls, or damage to control surfaces, etc).
- The Spring effect in 'effects' tab gets over-ridden by DCS's in-game spring effect.
- The spring slider in "Settings" controls the overall strength of DCS's in-game spring effect. Adding "spring" effect from Effects doesn't do much on top of in-game spring effect, so I leave it off.
- DCS does not generate any inertia or damper signals, so those I add manually by enabling them in "effects" tab and then controlling their overall strength via sliders in Settings.
- I also ramped up the "spring strength proportional damping" to 100% (top right corner, under PSU power), it gives the in-game spring effect a nice balance, it's in addition to the damper 'effect'/slider.