I use the Z2-S for work. Most of the time I need light while I have a tool in the other hand and 9 times out of 10 need it quickly. The holster is on my left side with the open end down holding the light so the button is protected and the bezel is pointing down so debris does not hit it.
After about 3 minutes of practise I can grab the light at the head, pull down and flip it into my hand lit in about a second. Always knowing where the lights located is great because the Z2-S is not cheap, when not in active use it stays in the holster eliminating misplacement.
I always carry a multi-tool, folding utility knife and my SureFire thanks to this excellent rig.
Pros: Very secure to belt and holds light firmly in an easy to reach location.
Cons: None
This review was written in the old system and had content requirements that are different than reviews written today.