Howdy, have 22E and spent hours setting up and crashing etc, nothing too severe but have put it away until I get a bit of practice on a sim. As I was mucking around setting it up with new bits I did notice the servo's on occation did not return to where they should

I have checked for binding with the horns disconected and the servo's still perform this nasty little task. Is there a better replacement? or are these little do-dads sensative to crashes and just need to be replaced or lubed?
And yes, I am looking for a better excuse than just my bad flying lol.