Originally Posted by get_nuts
They are flimsy and have a design flaw which causes them to break at the spindle. TIME "ATAK" pedals are far superior, IMO. As far as unclipping, this could also be caused by worn down cleats.
Care to share about the flaw?
As a data point: I've only ever had one unintentional un-clipping, and that was because the cleats were almost worn to nothing. BUT! I do run brakes, so stresses would be lower.
Interestingly, when switching between my bikes with the SL's and the ones w platform C's, the worn cleats feel less worn on the C bikes than the SL bikes.