I got intermittent blinkies when using normal 16340.
But the blinkies gone when I use IMR/high drain 16340.

I found it’s easier to replace the battery when using this clip position compared to under tailcap.
And yes, it’s also suitable for inside waistband carry.

I tried to relocate the clip under the bezel but the flashlight is sometimes not working, I don’t know what went wrong.