Maybe you are loosening it by resting your finger on it,you may be jiggling it about without realising it,also I'm amazed they let you change it five times.The wiggle is extremely slight and occurs mostly when I toy around with the switch. But I am beginning to wonder two things: 1) if I'm only finding this 'wiggle' because I am looking for it, and 2) that others must have this as well but being as it's so slight they are just simply not noticing it.
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