No sciwence to this ..
I have seen a few 930 stars broken - always on the drivers side at the hub - I always see worse wear on the inner (trans side) just becaiuse they run way hotter due to trans heating them up and less airflowÂ
I see cages broken againAt the hub, but thats when the car is set uo wrio g and over 28 degrees  and that are clacking al reaDY
I have learned the best results on the cars I prep is to use  lightened CV's  - dispapate heat better on the trans sides and Not use Bates boots, and run eiter 75/25 Swepco/BelRay  on 930's or 164 on 934's if the angle is 24 or under and Anything over 24 75/.25
that said, I work on a 383  (440HP rwhp) mid engine car that runs RBP econo 930's and red tacky ($5 a tube autozone grease) and he services the CV's yearly and they are going on 4 seasons  ... so go figure ... car is under 2600lbs that help, guy beats it like a dog though ...