if you want to use a servo saver on your nose whell do it this way, or you'll get flutter and dieeeeeeeee
use the brass servo arm attachments that screw down onto the control, dont know the name for them, dont use them. and two the same, or brass collets. put a collet on the rod, then a spring, one from a pen will do, then though the servo arn brass thingy, then the other spring, and last the collet. you can do this at the wheel or servo. leave the servo brass bit with the screw out, as the wheel bumps it pushes the spring towards the servo arm, but the spring stops it, tension can be adjusted by moving the end collets in or out. this should be on a seperate hole to the rudder which should be solid.
there is a similar set up on RC buggies with brakes, attached to the throttle.
crappy drawing below lol

.....................................< collet
to wheel ===O/////o//////O=
..............spring^ ^ servo attachment