Winwing CGRIP KA50 Bindings

I’ve recently acquired a WINWING KA50 for MS2020, and I’ve set up the collective fine, but I can’t find the right assignment for the throttle. the Throttle assignment affects both the throttle and the collective, and the Helicopter Throttle assignment decreases the throttle in both directions.
The whole system works fine in X-Plane 12.
What do you use for the KA50?