Throttle Altitude Hold

[ghost]

I have a Problem with altitude hold. My quad hover with 15.5% throttle so i edit the Pitch curve in my Radio so that i hover at Stick center. Also i change the nav hover thr to 1155 in inav.
If i activate nav alt hold i need to push throttle to 1500 to hold altitude. What i have to change that alt hold know my 1155 hover throttle?

[ghost]

Found my mistake. Had not set throttle mid correct.