Originally Posted by
linkless
I am not sure if this will help, but did you run the grub screw all the way in? I only put it in enough for the real screws to grab and mine haven't loosened after 600+ laps. It might be a slight mismatch between the grub screw threads and real screws causing the issue.
Iv been threading mine in pretty far, like the manual suggests. I think on my next one here , I will try your recommendation. Pre-thread just far enough to make sure the bolt has proper alignment, and then let the bolt do the rest.