I received my 3AA last week, and had just 2 days to enjoy it before I went for a 3-day hike in N.H. (light did not join me on trip) When I returned, I was measuring the output of the sets of batteries I was testing and then one of the few (really, just a few) times I pressed the switch on, it had a "soft" return. From then on, the switch would not press in either (little resistance), like a bad spring. Like any other "Tinkerer" I took apart the tail cap and re-built it.....Twice. The first time, it seemed better than new for 5-6 clicks, the second time I had no such luck. Now I am stuck with a 3AA aluminum battery holder (not sure if am going to order a replacement switch). Has anyone ever had this or any other problems with their switch??