Servo Saver nut loosening?

[JezT]

Hi,

Are any other Mad Rat/X-Pro owners having this problem: The green knurled servo saver nut on both our Rats keep loosening up, travelling up the thread till they reach the bearing at the top and bind it. Is there a way of locking the nut? I am considering fitting a nyloc instead... can't get my fingers in to adjust the knurled nut anyway.

Any solutions?