Ive had good success whith my antivibration mount method. Basically I use about 3 layers of doublesidded tape to attach servo to fuse and then use a zip tie to secure it. drill two holes on each side of servo and use zip tie like a strap. Before using this method I had servo failures due to vibration on feather servo. I also use straight ro to attach servo to throttle arm and locate the servo as close as possible to keep direct free linkage.