MF, if clicky action sluggish try douching out the switch with CRC electronic cleaner?I've had my Malkoff Hound Dog 18650 for about six years. Last night, I had the light on but when I switched it off the circuit didn't break. I had to click the switch a few times to turn it off. Never happened before. I keep spare McClicky switches in my parts bin. Is it time for a new switch?