How is the feel of the clip? Tension, sturdiness, ease of clipping it on to and off of a pocket? I like the addition of a clip... If it is in fact functionalThe rubber band on the head though, looks like an afterthought. I realize that I can just take it off, but the review implied that one handed operation was difficult without it. So how about including some grip elements in the machining process, Lumintop?