I put over 6000 miles on a set of 32mm gatorskins last year. Got 4 flats with them but I would not blame the gatorskins for any of them. Switched to GP5000 over the winter and instantly went from 16mph avg to 23mph avg on my rollers. Perhaps that was just the exuberance of a great feeling tyre. Out in the real world my average speed is the same or maybe +1 mph with the GP5000s. But the ride feels infinitely smoother.