Originally Posted by
Lonestar
Thanks - I did... degreased them upon assembly, then loctited... still off the ECS and into the C-hub the pin went. So now back to circlips-based DCJ's. Suggestions welcome. The rest of the car is tanfastic...

A trick that I've done in the past for ECS shafts is to add a sleeve of heat shrink around the coupler between the two shafts along with loctite on the screw. Even if the screw lets go the heat shrink keeps the pins in.
Never had an issue with the newest version of Xray shafts but I suppose there's always a possibility. I had a knack for tossing the spring clips on the brands I tried.