After reading about how other peoples' silent switch metal cap fell off, I noticed that most said prior to that, their silent switches were really hard to slide and/or they were stiff. Now, I'm wondering, just how stiff was it? Like when I shift my silent switch, I hear a click both ways (from ringer to silent, and silent to ringer) and there's a slight resistance when I shift. My friends' switches all kinda "glide" when they shift it. Is mine (soon to be) defective or is it within normal range?