RE: F27 STRYKER -Way Past the Limits Part 6 -Go deeper in to the Dark Side...
Sirpa,
I hope you solved your problem,
Read post #2545 on page 102.
In general it is recommended to have 2 identical servos.
In that post, read #2 and that might help you.
Edit: in your case, you may need the travel adjusts to be different, at least 2 of 4 numbers????? Play around with it, and check the basics.
Good luck,
Gryphon