I solved it
I increased the Gain (I thought that I dont have to do this, because I've already done this with the old Servo but with the Savox I could increase it again) a little bit and piro consistency and set rudder delay to 5 now everything is fine.
Now the stops are better than the Oxy's. Now i have to tune the Oxy again
Stops are better clockwise than counterclockwise so basically the same problem with the Oxy.
Edit: I tried many different settings with the Oxy today...
-Rudder delay 0-10 (0 was the best I think)
-Piro Consistency 150-185 (180 was the best, but that's quit high for such a small heli, isn't it?)
-Added Revomix 3
Settings at the moment are Rudder delay 0, Piro Con. 180 and Revomix 3, during Pitchpumps the tail doesn't move a millimeter, so that's perfect but counterclockwise stops are still not good.
Normally you only hear 1 noise during stops but if I do counterclockwise Piros and stop there are always 2 noises fast in a row. Therefore it always stops, then moves back a little bit clockwise really fast and stops again.
As I said exactly the same behavior like the protos had before but with the Oxy i can't find the right settings.
The whole tail is new, and moves very smooth, the Servo (KST215) is also new.
Is unequal stopping behavior general a little problem with the spirit? Because I've got 2 Helis with 2 Spirits and with both unequal stops...