Nilpointer,
I had the same problem and solved it this way. using the Virpil Software (VS), each throttle is calibrated for for the full range from “idle cutoff (all the way to the rear of the throttle base (past the warthog detent) to Max power; calibrating just to the detent produces your situation.
In the VS “Axis” section, when the throttles are in the detent position (idle thrust), left axis reads a value of 6.6% and the right axis reads 5.3%; the values are in the fourth column from left.
In the VS, when you double click in each throttle axis, i ticked 0% in the “Axis Button” column
In the VS “Button” section, I have each one of those axes assigned to a button that I used for the “Off <hold>idle” function in the DCS F15E controls (all the way back)
in DCS controls, In the “Axis Commands”, in “Axis Tune” for each throttle I configured the following settings:
Dead zone = 8
saturation X (not Y) = 72
The “Slider” box is ticked and inverted is probably already checked
This should fix your problem … no more runaway Eagle at Idle thrust. Adjusting the Dead Zone slightly in either direction to correct for the detent values indicated in your Virpil software maybe required. Works for the Viper as well. Hope this helps!
BTW, apologize for the multiple clarifications. Also, never changed anything the in the “Special Tab” in DCS.