Could it be loading the thing up with dawn soap had an effect on it? First the soap with completely strip any lubrication. If any soap is left behind it will dry and gunk up. Have you ever see top of and old dawn bottle with all the gunky residue build up? I would soak it in hot water then lube it up with a gun oil. But since it seems like the damage is done send it to Spyderco for repair. Maybe next time skip the dawn.