I've seen plenty of trashed cups. Always a shit sandwich, give back a serviced but still crunchy wheel, replace the hub and build it back to great cost or buy a new wheel.
And then there's the preload not set correctly or undoing itself. I'd rather have novatec, thanks
You have to try pretty hard to do in the cups; you get plenty of warning. Every bad cup I've ever seen was somebody else's fault.