Have just put in an order for one (Ok, two...) of these, and my mind naturally looks down the track to maintainence/cleaning. I know the Tact-o-click tailcap isn't supposed to be easily removable, but can anyone (PK or anyone who's tried) comment on whether or not it's at all possible to remove them from the inside of the light (eg by unlatching something, etc) to clean the threads or apply grease? I know PK mentioned Nygel but I was hoping to apply some Nye high-friction grease to the threads to avoid accidental activation of the tailcap when clipped to my pants.