My wife dropped the R6 while turning at low speeed in the driveway and the frame sliders saved the bike from any damage.
They more than paid for themselves right there.
I know they are designed to protect the frame...not the fairings...that's why they're not called "fairing sliders"...but none the less they saved the fairings in this case which is an added benefit.
Hopefully we won't ever get a chance to crash test them.