I have probably gone thru 15-20 GP5000 tires and scores of GP4000. I had one casing semi-rupture on the GP4K but I was bombing down a gravel hill. No failures on the GP5000 tires. OTOH, every single Compass extra legere casing ruptured on me.
Bead separation sounds like something sharp cut it, something like carbon.....I wonder what could do that?