DUDE!!! I thought I was the only one!!! I didn't know it was a common thing with keo's. I have been riding with the non slip cleats now for several months (Great when walking!) and I get this phantom creaking that comes and goes from my left cleat and I couldn't figure out why. I cleaned and greased the cleat bolts and everything and still....."CReaK....cReak.....nothing........CreaK....cReAk.....nothing...." drives me crazy!!!